Between brackets is the number of accepted species
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2 Shows the number of accepted species within the taxon
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- Biota
- Kingdom Animalia
- Kingdom Archaea
- Kingdom Bacteria
- Kingdom Chromista
- Kingdom Fungi
- Kingdom Plantae
- Phylum Acritarcha †
- Phylum Algae (awaiting allocation)
- Phylum Algae incertae sedis
- Phylum Anthocerotophyta
- Phylum Bryophyta
- Phylum Calcitarcha †
- Phylum Charophyta
- Phylum Chlorophyta
- Phylum Eophyta †
- Phylum Glaucophyta
- Phylum Gymnospermophyta accepted as Tracheophyta
- Phylum Horneophyta †
- Phylum Magnoliophyta accepted as Tracheophyta
- Phylum Marchantiophyta
- Phylum Picozoa
- Phylum Plantae (awaiting allocation)
- Phylum Prasinodermatophyta
- Phylum Pteridophyta accepted as Tracheophyta
- Phylum Rhodelphidia
- Phylum Rhodophyta
- Phylum Sporae dispersae †
- Phylum Tracheophyta
- Subdivision Lycopodiophytina
- Subdivision Polypodiophytina
- Subdivision Spermatophytina
- Superclass Angiospermae
- Class Liliopsida accepted as Magnoliopsida
- Class Magnoliopsida
- Order Acorales
- Order Adoxales accepted as Dipsacales
- Order Alismatales
- Order Alstroemeriales accepted as Liliales
- Order Amaryllidales accepted as Asparagales
- Order Amborellales
- Order Apiales
- Order Apocynales accepted as Gentianales
- Order Aquifoliales
- Order Arales accepted as Alismatales
- Order Araliales accepted as Apiales
- Order Aralidiales accepted as Apiales
- Order Arecales
- Order Aristolochiales accepted as Piperales
- Order Asparagales
- Order Asterales
- Order Aucubales accepted as Garryales
- Order Austrobaileyales
- Order Balanophorales accepted as Santalales
- Order Batales accepted as Brassicales
- Order Begoniales accepted as Cucurbitales
- Order Berberidales accepted as Ranunculales
- Order Berberidopsidales
- Order Biebersteiniales accepted as Sapindales
- Order Boraginales
- Order Brassicales
- Order Brexiales accepted as Celastrales
- Order Bromeliales accepted as Poales
- Order Bruniales
- Order Burmanniales accepted as Dioscoreales
- Order Burserales accepted as Sapindales
- Order Buxales
- Order Callitrichales accepted as Lamiales
- Order Calycerales accepted as Asterales
- Order Campanulales accepted as Asterales
- Order Canellales
- Order Capparales accepted as Brassicales
- Order Caryophyllales
- Order Casuarinales accepted as Fagales
- Order Celastrales
- Order Ceratophyllales
- Order Chloranthales
- Order Circaeasterales accepted as Ranunculales
- Order Cistales accepted as Malvales
- Order Colchicales accepted as Liliales
- Order Commelinales
- Order Cornales
- Order Corylales accepted as Fagales
- Order Crossosomatales
- Order Cucurbitales
- Order Cyclanthales accepted as Pandanales
- Order Cynomoriales accepted as Saxifragales
- Order Cyperales accepted as Poales
- Order Daphniphyllales accepted as Saxifragales
- Order Desfontainiales accepted as Bruniales
- Order Diapensiales accepted as Ericales
- Order Didymelales accepted as Buxales
- Order Dilleniales
- Order Dioscoreales
- Order Dipsacales
- Order Ebenales accepted as Ericales
- Order Ericales
- Order Eriocaulales accepted as Poales
- Order Escalloniales
- Order Eucommiales accepted as Garryales
- Order Euphorbiales accepted as Malpighiales
- Order Fabales
- Family Caesalpiniaceae R. Brown, 1814 accepted as Fabaceae Lindley, 1836
- Family Fabaceae Lindley, 1836
- Genus Abacosa Alefeld, 1861
- Genus Abarema Pittier, 1927
- Genus Abauria Beccari, 1877 accepted as Koompassia Maingay ex Bentham, 1873
- Genus Abrus Adanson, 1763
- Genus Acacia P. Miller, 1754
- Genus Acaciaphyllites E.W. Berry, 1914 †
- Genus Acaciella N.L. Britton & J.N. Rose, 1928
- Genus Acaciopsis N.L. Britton & J.N. Rose, 1928 accepted as Acacia P. Miller, 1754
- Genus Acacioxylon Schenk in K.A. Zittel, 1883 †
- Genus Acanthobotrya Ecklon & Zeyher, 1836
- Genus Acanthonotus Bentham in W.J. Hooker, 1849
- Genus Acanthophaca Nevski, 1937 accepted as Astragalus Linnaeus, 1753
- Genus Acanthopteron N.L. Britton in N.L. Britton & J.N. Rose, 1928 accepted as Mimosa Linnaeus, 1753
- Genus Acanthyllis Pomel, 1874 accepted as Anthyllis Linnaeus, 1753
- Genus Accorombona Endlicher, 1841
- Genus Achyronia J.C. Wendland, 1798
- Genus Achyronia A. van Royen ex Linnaeus, 1758
- Genus Acidandra C.F.P. Martius ex K.P.J. Sprengel, 1830
- Genus Acmispon Rafinesque, 1832 accepted as Lotus Linnaeus, 1753
- Genus Acosmium H.W. Schott in K.P.J. Sprengel, 1827
- Genus Acouroa Aublet, 1775 accepted as Dalbergia Linnaeus f., 1782
- Genus Acrocarpus R. Wight ex Arnott, 1838
- Genus Acropodium Desvaux, 1826
- Genus Acrotaphros Steudel ex A. Richard, 1847
- Genus Acuan Medikus, 1786 accepted as Desmanthus Willdenow, 1806
- Genus Acuania C.E.O. Kuntze, 1891 accepted as Desmanthus Willdenow, 1806
- Genus Adenanthera Linnaeus, 1753
- Genus Adenantheroxylon U. Prakash & P.P. Tripathi, 1968 †
- Genus Adenocarpus A.P. de Candolle in Lamarck & A.P. de Candolle, 1815
- Genus Adenodolichos Harms, 1902
- Genus Adenolobus (W.H. Harvey ex Bentham & J.D. Hooker) Torre & Hillcoat, 1956
- Genus Adenopodia K.B. Presl, 1851
- Genus Adesmia A.P. de Candolle, 1825
- Genus Adinobotrys Dunn, 1911 accepted as Callerya Endlicher, 1843
- Genus Adipera Rafinesque, 1838
- Genus Aedemone Kotschy, 1858
- Genus Aedomone accepted as Aedemone Kotschy, 1858
- Genus Aenictophyton A.T. Lee, 1973
- Genus Aeschynomene Linnaeus, 1753
- Genus Aeschynomenoxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Affonsea A.F.C.P. Saint-Hilaire, 1833 accepted as Inga P. Miller, 1754
- Genus Afgekia Craib, 1927
- Genus Afrafzelia J.B.L. Pierre, 1899 accepted as Afzelia J.E. Smith, 1798
- Genus Afrazelia Pierre, 1899
- Genus Afroamphica H. Ohashi & K. Ohashi in Ohashi & Ohashi, 2018
- Genus Afrocalliandra E.R. Souza & L.P. Queiroz, 2013
- Genus Afrormosia Harms in Engler & Prantl, 1906 accepted as Pericopsis Thwaites, 1864
- Genus Afzelia J.E. Smith, 1798
- Genus Afzelioxylon P. Louvet, 1966 †
- Genus Aganope Miquel, 1855
- Genus Agastianis Rafinesque, 1838 accepted as Sophora Linnaeus, 1753
- Genus Agati Adanson, 1763 accepted as Sesbania Scopoli, 1777
- Genus Ailuroschia C. Steven, 1856
- Genus Airyantha Brummitt, 1968
- Genus Akschindlium H. Ohashi, 2003 accepted as Tadehagi H. Ohashi, 1973
- Genus Alantsilodendron J.-F. Villiers, 1994
- Genus Albizia Durazzini, 1772
- Genus Albizzia accepted as Albizia Durazzini, 1772
- Genus Albizzinium U. Prakash, 1975 †
- Genus Albizzioxylon Ramanujam, 1960 †
- Genus Albizzioxylon P. Greguss, 1969 †
- Genus Albizzioxylon A.A. Nikitin, 1935 †
- Genus Aldina Endlicher, 1840
- Genus Aldina E.H.F. Meyer, 1836
- Genus Aldina Adanson, 1763
- Genus Alepidocalyx Piper, 1926 accepted as Phaseolus Linnaeus, 1753
- Genus Alexa Moquin in Alph. de Candolle, 1849
- Genus Alexandra R.H. Schomburgk, 1845
- Genus Algarobia (A.P. de Candolle) Bentham, 1839 accepted as Prosopis Linnaeus, 1767
- Genus Alhagi Gagnebin, 1755
- Genus Alistilus N.E. Brown, 1921
- Genus Allania Bentham, 1840
- Genus Alloburkillia T.C. Whitmore, 1969 accepted as Burkilliodendron A.R.K. Sastry, 1969
- Genus Almaleea M.D. Crisp & P.H. Weston, 1991
- Genus Alopecias C. Steven, 1856
- Genus Alophotropis (H.F. Jaubert & É. Spach) A.A. Grossheim accepted as Vavilovia A.A. Fedorov, 1939
- Genus Alvesia F.M.J. Welwitsch, 1859
- Genus Alysicarpus Necker ex Desvaux, 1813
- Genus Amarenus K.B. Presl, 1831
- Genus Amaria S. Mutis ex Caldas, 1810
- Genus Amblygonocarpus Harms in Engler & Prantl, 1897
- Genus Amblyotropis M. Kitagawa, 1936 accepted as Gueldenstaedtia F.E.L. Fischer, 1823
- Genus Amblytropis Kitagawa, 1936 accepted as Gueldenstaedtia F.E.L. Fischer, 1823
- Genus Amburana Schwacke & Taubert in Engler & Prantl, 1894
- Genus Amerimnon P. Browne, 1756 accepted as Dalbergia Linnaeus f., 1782
- Genus Amerimnum J.A. Scopoli, 1777 accepted as Dalbergia Linnaeus f., 1782
- Genus Amherstia Wallich, 1829
- Genus Amicia Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Ammodendron F.E.L. Fischer ex A.P. de Candolle, 1825
- Genus Ammopiptanthus S.H. Cheng, 1959
- Genus Ammothamnus Bunge, 1847 accepted as Sophora Linnaeus, 1753
- Genus Amoria K.B. Presl, 1831 accepted as Trifolium Linnaeus, 1753
- Genus Amorpha Linnaeus, 1753
- Genus Amphicarpa S. Elliott ex Nuttall, 1818 accepted as Amphicarpaea S. Elliott ex Nuttall, 1818
- Genus Amphicarpaea S. Elliott ex Nuttall, 1818
- Genus Amphimas Pierre ex Harms in Engler & Prantl, 1906
- Genus Amphinomia A.P. de Candolle, 1825 accepted as Lotononis (A.P. de Candolle) Ecklon & Zeyher, 1836
- Genus Amphiodon J. Huber, 1909 accepted as Poecilanthe Bentham, 1860
- Genus Amphithalea Ecklon & Zeyher, 1836
- Genus Amphodus J. Lindley, 1827
- Genus Amphymenium Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Anadenanthera Spegazzini, 1923
- Genus Anagyris Linnaeus, 1753
- Genus Anarthrophyllum Bentham in Bentham & J.D. Hooker, 1865
- Genus Anarthrosyne E.H.F. Meyer, 1836
- Genus Anatropostylia (U. Plitmann) F.K. Kupicha, 1973 accepted as Ormosia G. Jackson, 1811
- Genus Ancistrotropis A. Delgado, 2011
- Genus Ancylocalyx L.R. Tulasne, 1843
- Genus Andaca Rafinesque, 1837
- Genus Andira A.L. Jussieu, 1789
- Genus Andiroxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Andradia T.R. Sim, 1909 accepted as Dialium Linnaeus, 1767
- Genus Androcalymma Dwyer, 1957
- Genus Angylocalyx Taubert, 1896
- Genus Anil P. Miller, 1754
- Genus Anila Ludwig ex O. Kuntze, 1891
- Genus Aniotum Parkinson, 1773 accepted as Inocarpus J.R. Forster & J.G.A. Forster, 1775
- Genus Anisanthera Rafinesque, 1837
- Genus Anisolotus Bernhardi, 1837 accepted as Lotus Linnaeus, 1753
- Genus Ankylobus C. Steven, 1856
- Genus Annea B.A. Mackinder & J.J. Wieringa, 2013
- Genus Anneslia R.A. Salisbury, 1807 accepted as Calliandra Bentham, 1840
- Genus Anonis P. Miller, 1754
- Genus Anonychium (Bentham) Schweinfurth, 1868
- Genus Antheroporum Gagnepain, 1915
- Genus Anthonotha Palisot de Beauvois, 1806
- Genus Anthyllis Linnaeus, 1753
- Genus Antopetitia A. Richard, 1840
- Genus Anurus K.B. Presl, 1837
- Genus Aotus J.E. Smith, 1805
- Genus Apalatoa Aublet, 1775 accepted as Crudia Schreber, 1789
- Genus Apaloxylon Drake del Castillo in Grandidier, 1903 accepted as Neoapaloxylon S. Rauschert, 1982
- Genus Aphaca P. Miller, 1754 accepted as Lathyrus Linnaeus, 1753
- Genus Aphanocalyx D. Oliver, 1870
- Genus Aphanocalyxylon Cevallos-Ferriz et al., 2024 †
- Genus Aphora Necker ex O. Kuntze, 1891
- Genus Aphyllodium (A.P. de Candolle) Gagnepain, 1916
- Genus Apios Fabricius, 1759
- Genus Apodynomene E.H.F. Meyer, 1836
- Genus Apoleya Gleason, 1935
- Genus Apoplanesia K.B. Presl, 1832
- Genus Aporanthus W.A. Bromfield, 1856
- Genus Aprevalia Baillon, 1884 accepted as Delonix Rafinesque, 1837
- Genus Apuleia C.F.P. Martius, 1837
- Genus Apuleja C.F.P. Martius, 1837
- Genus Apurimacia Harms, 1923
- Genus Arachidna Boehmer in C.G. Ludwig, 1760
- Genus Arachis Linnaeus, 1753
- Genus Arachus Medikus, 1787
- Genus Aragallus Necker ex E.L. Greene, 1897 accepted as Astragalus Linnaeus, 1753
- Genus Arapatiella C.T. Rizzini & A. de Mattos, 1972
- Genus Archdendron accepted as Archidendron F. von Mueller, 1865
- Genus Archidendron F. von Mueller, 1865
- Genus Archidendropsis I. Nielsen, 1983
- Genus Arcoa Urban, 1923
- Genus Arcyphyllum S. Elliott, 1818
- Genus Argyrocytisus (R. Maire) C. Raynaud, 1975
- Genus Argyrolobium Ecklon & Zeyher, 1836
- Genus Arillaria S. Kurz, 1873
- Genus Arouna Aublet, 1775 accepted as Dialium Linnaeus, 1767
- Genus Arquita E. Gagnon, G.P. Lewis & C.E. Hughes, 2015
- Genus Arthrocarpum I.B. Balfour, 1882 accepted as Chapmannia J. Torrey & A. Gray, 1838
- Genus Arthroclianthus Baillon, 1870
- Genus Arthrolobium H.G.L. Reichenbach, 1828
- Genus Arthrosamanea N.L. Britton & J.N. Rose, 1936 accepted as Pseudalbizzia Britton & J.N. Rose, 1928
- Genus Arthrosprion Hasskarl, 1855
- Genus Artrolobium Desvaux, 1813 accepted as Coronilla Linnaeus, 1753
- Genus Aruna J.C.D. von Schreber, 1789 accepted as Arouna Aublet, 1775
- Genus Asacara Rafinesque, 1825
- Genus Asagraea Baillon, 1870 accepted as Psorothamnus Rydberg, 1919
- Genus Asjogan Lamarck, 1783
- Genus Aspalathoides (A.P. de Candolle) K.H.E. Koch, 1853 accepted as Anthyllis Linnaeus, 1753
- Genus Aspalathus Linnaeus, 1753
- Genus Aspalathus Amman ex O. Kuntze, 1891
- Genus Aspalthium Medikus, 1787 accepted as Bituminaria Heister ex Fabricius, 1759
- Genus Asphalathus N.L. Burman, 1768
- Genus Asphalthium F.K. Medikus, 1787
- Genus Astenolobium Nevski, 1937 accepted as Astragalus Linnaeus, 1753
- Genus Asterocytisus (W.D.J. Koch) Schur ex Fuss, 1866 accepted as Genista Linnaeus, 1753
- Genus Astracantha D. Podlech, 1983 accepted as Astragalus Linnaeus, 1753
- Genus Astragalina Bubani, 1899-1900
- Genus Astragaloides Boehmer in C.G. Ludwig, 1760
- Genus Astragalus Linnaeus, 1753
- Genus Astrolobium A.P. de Candolle, 1825
- Genus Astrophia Nuttall in J. Torrey & A. Gray, 1838
- Genus Astyposanthes W.G. Herter, 1943
- Genus Ateleia (A.P. de Candolle) Bentham, 1837
- Genus Atelophragma P.A. Rydberg, 1905 accepted as Astragalus Linnaeus, 1753
- Genus Atossa Alefeld, 1861
- Genus Atylosia R. Wight & Arnott, 1834 accepted as Cajanus Adanson, 1763
- Genus Aubrevillea F. Pellegrin, 1933
- Genus Augouardia Pellegrin, 1924
- Genus Aulacinthus E.H.F. Meyer, 1836
- Genus Aulonix Rafinesque, 1838
- Genus Aulosema Walpers, 1842
- Genus Austrocallerya J. Compton & B.D. Schrire in Compton et al., 2019
- Genus Austrodolichos Verdcourt, 1970
- Genus Austrosteenisia R. Geesink, 1984
- Genus Avornela Rafinesque, 1838
- Genus Azukia Takahashi ex Ohwi, 1953 accepted as Vigna G. Savi, 1824
- Genus Bactyrilobium Willdenow, 1809 accepted as Cassia Linnaeus, 1753
- Genus Baguenaudiera Bubani, 1899-1900
- Genus Bahamia N.L. Britton & J.N. Rose, 1928 accepted as Acacia P. Miller, 1754
- Genus Baikiaea Bentham in Bentham & J.D. Hooker, 1865
- Genus Baithiaea accepted as Brandzeia Baillon, 1869
- Genus Bajacalifornioxylon S.R.S. Cevallos-Ferriz & J. Barajas-Morales, 1994 †
- Genus Bakerophyton (J. Léonard) J. Hutchinson, 1964 accepted as Aeschynomene Linnaeus, 1753
- Genus Balboa Liebmann ex Didrichsen, 1853
- Genus Balisaea Taubert, 1896 accepted as Ctenodon Baillon, 1870
- Genus Balizia R.C. Barneby & J.W. Grimes, 1996 accepted as Hydrochorea R.C. Barneby & J.W. Grimes, 1996
- Genus Balsamocarpon D. Clos in C. Gay, 1847
- Genus Banalia Bubani, 1899-1900
- Genus Bandeiraea Welwitsch ex Bentham & J.D. Hooker, 1865 accepted as Griffonia Baillon, 1865
- Genus Baphia G. Loddiges in C. Loddiges, 1820
- Genus Baphiastrum Harms, 1913 accepted as Leucomphalos Bentham ex J.E. Planchon, 1848
- Genus Baphiopsis Bentham ex J.G. Baker in D. Oliver, 1871
- Genus Baphioxylon R.N. Lakhanpal & U. Prakash, 1970 †
- Genus Baphioxylon B.S. Trivedi & K. Srivastava, 1986 †
- Genus Baptisia Ventenat, 1808
- Genus Barbajovis Séguier, 1754 accepted as Barba-jovis Séguier, 1754
- Genus Barba-jovis Séguier, 1754
- Genus Barbiera C.P.J. Sprengel, 1831 accepted as Barbieria A.P. de Candolle, 1825
- Genus Barbieria A.P. de Candolle, 1825
- Genus Barklya F. von Mueller, 1859
- Genus Barnebydendron J.H. Kirkbride, 1999
- Genus Barnebyella D. Podlech, 1994 accepted as Astragalus Linnaeus, 1753
- Genus Baryosma J. Gaertner, 1790
- Genus Baryxylum Loureiro, 1790 accepted as Peltophorum (Vogel) Bentham, 1840
- Genus Batesia Spruce ex Bentham & J.D. Hooker, 1865
- Genus Bathiaea Drake del Castillo in Baillon, 1902 accepted as Brandzeia Baillon, 1869
- Genus Batidophaca Rydberg, 1929 accepted as Astragalus Linnaeus, 1753
- Genus Baudouinia Baillon, 1866
- Genus Bauerella A.K. Schindler, 1926 accepted as Psoralea Linnaeus, 1753
- Genus Baueropsis J. Hutchinson, 1964 accepted as Cullen Medikus, 1787
- Genus Bauhcis L. Calvillo-Canadell & S.R.S. Cevallos-Ferriz, 2002 †
- Genus Bauhinia Linnaeus, 1753
- Genus Bauhinites Seward & Conway, 1935 †
- Genus Bauhinium B.S. Trivedi & M. Panjwani, 1986 †
- Genus Baukea Vatke, 1881 accepted as Rhynchosia Loureiro, 1790
- Genus Behaimia Grisebach, 1866
- Genus Belairia A. Richard in Sagra, 1846 accepted as Pictetia A.P. de Candolle, 1825
- Genus Beliceodendron C.L. Lundell, 1975 accepted as Lecointea A. Ducke, 1922
- Genus Bembicidium Rydberg, 1920 accepted as Poitea Ventenat, 1807
- Genus Benedictella Maire, 1924 accepted as Lotus Linnaeus, 1753
- Genus Benthamantha Alefeld, 1862 accepted as Coursetia A.P. de Candolle, 1825
- Genus Bergeronia M. Micheli, 1883
- Genus Berlinia Solander ex J.D. Hooker & Bentham in W.J. Hooker, 1849
- Genus Berlinioxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Berrebera Hochstetter, 1844 accepted as Millettia R. Wight & Arnott, 1834
- Genus Besenna A. Richard, 1847 accepted as Albizia Durazzini, 1772
- Genus Bessia Rafinesque, 1838
- Genus Betencourtia A.F.C.P. Saint-Hilaire, 1833
- Genus Biancaea Todaro, 1860 accepted as Caesalpinia Linnaeus, 1753
- Genus Bikinia J.J. Wieringa, 1999
- Genus Binaria Rafinesque, 1838
- Genus Bionia C.F.P. Martius ex Bentham, 1837
- Genus Bipontinia Alefeld, 1866
- Genus Biserrula Linnaeus, 1753
- Genus Bisrautanenia O. Kuntze in Post & O. Kuntze, 1903 accepted as Neorautanenia Schinz, 1899
- Genus Bituminaria Heister ex Fabricius, 1759
- Genus Bituminaria C.H. Stirton, 1981 accepted as Bituminaria Heister ex Fabricius, 1759
- Genus Blanchetiodendron R.C. Barneby & J.W. Grimes, 1996
- Genus Bobgunnia J.H. Kirkbride & J.H. Wiersema, 1997
- Genus Bobrovia A.P. Khokhrjakov, 1998 accepted as Trifolium Linnaeus, 1753
- Genus Bocoa Aublet, 1775
- Genus Boelia P.B. Webb, 1853
- Genus Boenninghausia K.P.J. Sprengel, 1826
- Genus Boliviadendron E.R. Souza & C.E. Hughes, 2022
- Genus Bolusafra O. Kuntze, 1891
- Genus Bolusanthus Harms, 1906
- Genus Bolusia Bentham, 1873
- Genus Bona Medikus, 1787 accepted as Vicia Linnaeus, 1753
- Genus Bonaga Medikus, 1787
- Genus Bonaveria Scopoli, 1777 accepted as Coronilla Linnaeus, 1753
- Genus Bonduc P. Miller, 1754 accepted as Guilandina Linnaeus, 1753
- Genus Bonjeanea H.G.L. Reichenbach, 1832
- Genus Bonjeania accepted as Bonjeanea H.G.L. Reichenbach, 1832
- Genus Bootia Adanson, 1763
- Genus Borbonia Linnaeus, 1753 accepted as Aspalathus Linnaeus, 1753
- Genus Bossiaea Ventenat, 1800
- Genus Botor Adanson, 1763 accepted as Psophocarpus Necker ex A.P. de Candolle, 1825
- Genus Botryolotus Jaubert & Spach, 1843
- Genus Bouffordia H. Ohashi & K. Ohashi in Ohashi et al., 2018
- Genus Bowdichia Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Bowringia Champion ex Bentham, 1852 accepted as Leucomphalos Bentham ex J.E. Planchon, 1848
- Genus Brachycylix (Harms) R.S. Cowan, 1975
- Genus Brachylobus Dulac, 1867
- Genus Brachyphragma Rydberg, 1929 accepted as Astragalus Linnaeus, 1753
- Genus Brachypterum (R. Wight & Arnott) Bentham, 1837 accepted as Derris Loureiro, 1790
- Genus Brachysema R. Brown in W.T. Aiton, 1811 accepted as Gastrolobium R. Brown in W.T. Aiton, 1811
- Genus Brachystegia Bentham in Bentham & J.D. Hooker, 1865
- Genus Brachystegioxylon R.N. Lakhanpal & U. Prakash, 1970 †
- Genus Bracteolanthus H.C.D. de Wit, 1956 accepted as Lysiphyllum (Bentham) H.C.D. de Wit, 1956
- Species Bracteolanthus dipterus (Miq.) de Wit accepted as Bauhinia yunnanensis Franch.
- Genus Bracteolaria Hochstetter, 1841 accepted as Baphia G. Loddiges in C. Loddiges, 1820
- Genus Bradburia K.P.J. Sprengel, 1826 accepted as Bradburya Rafinesque, 1817
- Genus Bradburya Rafinesque, 1817 accepted as Centrosema (A.P. de Candolle) Bentham, 1837
- Genus Bradlea Adanson, 1763
- Genus Bradypterum accepted as Derris Loureiro, 1790
- Genus Brandzeia Baillon, 1869
- Genus Brasilettia (A.P. de Candolle) O. Kuntze, 1891 accepted as Caesalpinia Linnaeus, 1753
- Genus Bremontiera A.P. de Candolle, 1825 accepted as Indigofera Linnaeus, 1753
- Genus Brenaniodendron J. Léonard, 1999 accepted as Micklethwaitia G.P. Lewis & B.D. Schrire, 2004
- Genus Brenierea Humbert, 1959
- Genus Brissonia Necker ex Desvaux, 1814
- Genus Brittonamra O. Kuntze, 1891
- Genus Brodriguesia R.S. Cowan, 1981
- Genus Brongniartia Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Broussonetia Ortega, 1798 accepted as Sophora Linnaeus, 1753
- Genus Brownaea N.J. Jacquin, 1760
- Genus Brownea N.J. Jacquin, 1760
- Genus Browneopsis Huber, 1906
- Genus Brya P. Browne, 1756
- Genus Bryaspis Duvigneaud, 1954
- Genus Buceras Haller, 1768
- Genus Buchenroedera Ecklon & Zeyher, 1836 accepted as Lotononis (A.P. de Candolle) Ecklon & Zeyher, 1836
- Genus Buergeria Miquel, 1867 accepted as Maackia Ruprecht, 1856
- Genus Bugranopsis Pomel, 1874 accepted as Ononis Linnaeus, 1753
- Genus Bujacia E.H.F. Meyer, 1836
- Genus Burgesia F. von Mueller, 1859 accepted as Gastrolobium R. Brown in W.T. Aiton, 1811
- Genus Burkea W.J. Hooker, 1843
- Genus Burkillia H.N. Ridley, 1925 accepted as Burkilliodendron A.R.K. Sastry, 1969
- Genus Burkilliodendron A.R.K. Sastry, 1969
- Genus Burtonia R. Brown ex W.T. Aiton, 1811 accepted as Gompholobium J.E. Smith, 1798
- Genus Bussea Harms, 1902
- Genus Butea Roxburgh ex Willdenow, 1802
- Genus Cabari B.D.S. Gregório & D. Cardoso in Gregório et al., 2023
- Genus Cacara L.M.A.A. Du Petit-Thouars in F. Cuvier, 1806 accepted as Pachyrhizus L.C. Richard ex A.P. de Candolle, 1825
- Genus Cacuvallum Medikus, 1787
- Genus Cadelium Medikus, 1787
- Genus Cadia Forsskål, 1775
- Genus Caesalpinia Linnaeus, 1753
- Genus Caesalpiniodes O. Kuntze, 1891
- Genus Caesalpinioxylon Schenk in W.P. Schimper & Schenk, 1890 †
- Genus Caesalpinites G. de Saporta, 1862 †
- Genus Caesaplinia accepted as Caesalpinia Linnaeus, 1753
- Genus Caetangil L.P. Queiroz, 2020
- Genus Cailliea J.B.A. Guillemin & Perrottet in J.B.A. Guillemin, Perrottet & A. Richard, 1832 accepted as Dichrostachys (A.P. de Candolle) R. Wight & Arnott, 1834
- Genus Cajalbania Urban, 1928 accepted as Gliricidia Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Cajan Adanson, 1763 accepted as Cajanus Adanson, 1763
- Genus Cajanum Rafinesque, 1838
- Genus Cajanus Adanson, 1763
- Genus Caju-Galedupa G.E. Rumphius, 1741
- Genus Cajum O. Kuntze, 1891
- Genus Calia Berlandier in Terán, 1832
- Genus Calicotome J.H.F. Link, 1808
- Genus Calispepla A.I. Vvedensky, 1952 accepted as Argyrolobium Ecklon & Zeyher, 1836
- Genus Callerya Endlicher, 1843
- Genus Calliandra Bentham, 1840
- Genus Calliandropsis H.M. Hernández & P. Guinet, 1990
- Genus Callicysthus Endlicher, 1833
- Genus Callisemaea Bentham, 1837
- Genus Callistachys Ventenat, 1805 accepted as Oxylobium H.C. Andrews, 1807
- Genus Callistylon Pittier, 1928 accepted as Coursetia A.P. de Candolle, 1825
- Genus Callotropis G. Don, 1832
- Genus Calobota Ecklon & Zeyher, 1836
- Genus Calophaca F.E.L. Fischer ex A.P. de Candolle, 1825
- Genus Calopogonium Desvaux, 1826
- Genus Calpocalyx Harms in Engler & Prantl, 1897
- Genus Calpurnia E.H.F. Meyer, 1836
- Genus Calusia Bert. ex E.G. von Steudel, 1840
- Genus Calycandra Leprieur ex A. Richard in Guillemin, Perrottet & A. Richard, 1831
- Genus Calycomorphum K.B. Presl, 1832
- Genus Calycotome E.H.F. Meyer, 1836 accepted as Dichilus A.P. de Candolle, 1825
- Genus Calycotome J.H.F. Link, 1808 accepted as Calicotome J.H.F. Link, 1808
- Genus Calycotomon Hoffmannsegg, 1824
- Genus Camoensia Welwitsch ex Bentham & J.D. Hooker, 1865
- Genus Campecia Adanson, 1763
- Genus Campsiandra Bentham, 1840
- Genus Camptosema W.J. Hooker & Arnott, 1833
- Genus Campylotropis Bunge, 1835
- Genus Canavali Adanson, 1763 accepted as Canavalia Adanson, 1763
- Genus Canavalia Adanson, 1763
- Genus Canavalia A.P. de Candolle, 1825
- Genus Candolleodendron Cowan, 1966
- Genus Canizaresia N.L. Britton, 1920 accepted as Piscidia Linnaeus, 1759
- Genus Cansenia Rafinesque, 1838
- Genus Cantharospermum R. Wight & Arnott, 1834 accepted as Cajanus Adanson, 1763
- Genus Cantharspermum accepted as Cantharospermum R. Wight & Arnott, 1834
- Genus Cantuffa J.F. Gmelin, 1791 accepted as Pterolobium R. Brown ex R. Wight & Arnott, 1834
- Genus Capassa Klotzsch in W.C.H. Peters, 1861 accepted as Philenoptera Hochstetter ex A. Richard, 1847
- Genus Capnitis E.H.F. Meyer, 1836
- Genus Caracalla A. Todaro ex Lemaire, 1862
- Genus Caragana Fabricius, 1763
- Genus Cardenasia Rusby, 1927 accepted as Bauhinia Linnaeus, 1753
- Genus Carissoa accepted as Carrissoa E.G. Baker, 1933
- Genus Carmichaelia R. Brown in J. Lindley, 1825
- Genus Carpogon accepted as Mucuna Adanson, 1763
- Genus Carpopogon Roxburgh, 1832 accepted as Mucuna Adanson, 1763
- Genus Carrissoa E.G. Baker, 1933
- Genus Carroa K.B. Presl, 1834 accepted as Marina Liebmann, 1854
- Genus Cascaronia Grisebach, 1879
- Genus Cashalia Standley, 1923 accepted as Dussia Krug & Urban ex Taubert in Engler & Prantl, 1892
- Genus Casparea Kunth, 1824 accepted as Bauhinia Linnaeus, 1753
- Genus Caspareopsis N.L. Britton & J.N. Rose, 1930 accepted as Bauhinia Linnaeus, 1753
- Genus Casparia Kunth, 1824 accepted as Bauhinia Linnaeus, 1753
- Genus Caspariopsis accepted as Bauhinia Linnaeus, 1753
- Genus Cassia Linnaeus, 1753
- Genus Cassiana Rafinesque, 1818
- Genus Cassinium U. Prakash, 1975 †
- Genus Cassioxylon J. Felix, 1882 †
- Genus Castanocarpus Sweet, 1830
- Genus Castanospermum A. Cunningham ex W.J. Hooker, 1830
- Genus Catacline Edgeworth, 1847
- Genus Catenaria Bentham in Miquel, 1852 accepted as Desmodium Desvaux, 1813
- Genus Cathartocarpus Persoon, 1805 accepted as Cassia Linnaeus, 1753
- Genus Cathormion (Bentham) Hasskarl, 1855
- Genus Cathormium accepted as Cathormion (Bentham) Hasskarl, 1855
- Genus Caudoleucaena N.L. Britton & J.N. Rose, 1928 accepted as Leucaena Bentham, 1842
- Genus Caulinia Moench, 1802 accepted as Kennedia Ventenat, 1805
- Genus Caulocarpus E.G. Baker, 1926 accepted as Tephrosia Persoon, 1807
- Genus Caulotretus (A.P. de Candolle) Richard ex Schott in K.P.J. Sprengel, 1827 accepted as Schnella Raddi, 1820
- Genus Cavaraea Spegazzini, 1917 accepted as Tamarindus Linnaeus, 1753
- Genus Cebipira A.L. Jussieu ex O. Kuntze in Post & O. Kuntze, 1903
- Genus Cedrelinga Ducke, 1922
- Genus Cenostigma L.R. Tulasne, 1843
- Genus Centrolobium C.F.P. Martius ex Bentham, 1837
- Genus Centrosema (A.P. de Candolle) Bentham, 1837
- Genus Cephalostigmaton Yakovlev, 1967 accepted as Sophora Linnaeus, 1753
- Genus Ceratia Adanson, 1763
- Genus Ceratonia Linnaeus, 1753
- Genus Ceratoniophyllum F. Kirchheimer, 1931 †
- Genus Cercidiopsis N.L. Britton & J.N. Rose, 1930 accepted as Parkinsonia Linnaeus, 1753
- Genus Cercidium L.R. Tulasne, 1844 accepted as Parkinsonia Linnaeus, 1753
- Genus Cercidoxylon P. Platen, 1908 †
- Genus Cercis Linnaeus, 1753
- Genus Cerradicola L.P. Queiroz, 2020
- Genus Chadsia Bojer in L. Bouton, 1842
- Genus Chaenolobium Miquel, 1861
- Genus Chaetocalyx A.P. de Candolle, 1825
- Genus Chamaecassia Link, 1831
- Genus Chamaecrista Moench, 1794
- Genus Chamaecystis accepted as Chamaecytisus Link, 1831
- Genus Chamaecytisus Link, 1831
- Genus Chamaecytisus Visiani, 1852
- Genus Chamaefistula (A.P. de Candolle) G. Don, 1832 accepted as Senna P. Miller, 1754
- Genus Chamaesenna Rafinesque ex Pittier, 1928 accepted as Senna P. Miller, 1754
- Genus Chamaespartium Adanson, 1763 accepted as Genista Linnaeus, 1753
- Genus Chapmannia J. Torrey & A. Gray, 1838
- Genus Chasmone E.H.F. Meyer, 1836 accepted as Argyrolobium Ecklon & Zeyher, 1836
- Genus Cheniella R. Clark & B.A. Mackinder, 2017
- Genus Chesneya Lindley ex Endlicher, 1840
- Genus Chesniella Borissova, 1964
- Genus Chidlowia Hoyle, 1932
- Genus Chiovendaea Spegazzini, 1917 accepted as Coursetia A.P. de Candolle, 1825
- Genus Chirocalyx C.F. Meisner, 1843 accepted as Erythrina Linnaeus, 1753
- Genus Chithonanthus J.G.C. Lehmann, 1848
- Genus Chloroleucon (Bentham) Record, 1927
- Genus Chloroleucoxylon R.S. Ramos, M. Brea, D.M. Kröhling & S.A. Contreras, 2022 †
- Genus Chloroleucum Record, 1927 accepted as Chloroleucon (Bentham) Record, 1927
- Genus Chloryllis E.H.F. Meyer, 1836
- Genus Chondrocarpus Nuttall, 1818
- Genus Chordospartium Cheeseman, 1910 accepted as Carmichaelia R. Brown in J. Lindley, 1825
- Genus Chorizema Labillardière, 1800
- Genus Christa accepted as Christia Moench, 1802
- Genus Christia Moench, 1802
- Genus Chronanthos K.H.E. Koch, 1853 accepted as Cytisus Desfontaines, 1798
- Genus Chronanthus accepted as Cytisus Desfontaines, 1798
- Genus Chrysaspis Desvaux, 1827 accepted as Trifolium Linnaeus, 1753
- Genus Chrysocalyx J.B.A. Guillemin & Perrottet in J.B.A. Guillemin, Perrottet & A. Richard, 1831
- Genus Chrysoscias E.H.F. Meyer, 1836
- Genus Chrysoxylon Casaretto, 1843
- Genus Chrystolia X. Montrouzier ex G.E.C. Beauvisage, 1901 accepted as Glycine Willdenow, 1802
- Genus Cicer Linnaeus, 1753
- Genus Cicercula Medikus, 1787
- Genus Cicercula Moench, 1794
- Genus Cinclidocarpus Zollinger, 1846
- Genus Circinnus Medikus, 1787 accepted as Hymenocarpos G. Savi, 1798
- Genus Circinus F.K. Medikus, 1789 accepted as Hymenocarpos G. Savi, 1798
- Genus Citta Loureiro, 1790 accepted as Mucuna Adanson, 1763
- Genus Cladotrichium Vogel, 1837 accepted as Pomaria Cavanilles, 1799
- Genus Cladrastis Rafinesque, 1824
- Genus Clathrotropis (Bentham) Harms in Dalla Torre & Harms, 1901
- Genus Clavulium Desvaux, 1826
- Genus Cleditshia accepted as Gleditsia Linnaeus, 1753
- Genus Clelia Casaretto, 1845
- Genus Clementea Cavanilles, 1804
- Genus Cleobulia C.F.P. Martius ex Bentham, 1837
- Genus Clianthum accepted as Clianthus Solander ex J. Lindley, 1835
- Genus Clianthus Solander ex J. Lindley, 1835
- Genus Clidanthera R. Brown in Sturt, 1849
- Genus Climacorachis Hemsley & Rose, 1903 accepted as Aeschynomene Linnaeus, 1753
- Genus Clitoria Linnaeus, 1753
- Genus Clitoriopsis Wilczek, 1954
- Genus Clompanus Aublet, 1775 accepted as Lonchocarpus Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Clymenum P. Miller, 1754
- Genus Clypearia [author?] accepted as Falcataria (I. Nielsen) R.C. Barneby & J.W. Grimes, 1996
- Genus Cnemidophacos Rydberg, 1906 accepted as Astragalus Linnaeus, 1753
- Genus Cochleata Medikus, 1789
- Genus Cochlianthus Bentham in Miquel, 1852
- Genus Cochliasanthus C.J. Trew, 1764
- Genus Cochliocarpus Visiani, 1858 †
- Genus Codariocalyx Hasskarl, 1842
- Genus Codarium Solander ex M. Vahl, 1804
- Genus Codonandra H. Karsten, 1863 accepted as Calliandra Bentham, 1840
- Genus Codoriocalyx Hasskarl, 1841
- Genus Coelidium J.R. Th. Vogel ex Walpers, 1840 accepted as Amphithalea Ecklon & Zeyher, 1836
- Genus Cojoba N.L. Britton & J.N. Rose, 1928
- Genus Colinil Adanson, 1763 accepted as Tephrosia Persoon, 1807
- Genus Collaea A.P. de Candolle, 1825
- Genus Colobotus E.H.F. Meyer, 1836
- Genus Cologania Kunth, 1824
- Genus Colophospermum J. Kirk ex J. Léonard, 1949
- Genus Colutea Linnaeus, 1753
- Genus Coluteastrum Heister ex Fabricius, 1763 accepted as Lessertia A.P. de Candolle, 1802
- Genus Colutia Medikus, 1787
- Genus Colvillea Bojer in W.J. Hooker, 1834
- Genus Commilobium Bentham, 1837 accepted as Pterodon Vogel, 1837
- Genus Condylostylis Piper, 1926 accepted as Vigna G. Savi, 1824
- Genus Contortuplicata Medikus, 1787 accepted as Astragalus Linnaeus, 1753
- Genus Conzattia J.N. Rose, 1909
- Genus Copaiba P. Miller, 1754 accepted as Copaifera Linnaeus, 1762
- Genus Copaifera Linnaeus, 1762
- Genus Copaiferoxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Copaiva N.J. Jacquin, 1760 accepted as Copaifera Linnaeus, 1762
- Genus Copisma E.H.F. Meyer, 1836 accepted as Rhynchosia Loureiro, 1790
- Genus Coppoleria Todaro, 1845
- Genus Coquebertia A.T. Brongniart, 1833
- Genus Corallaria accepted as Adenanthera Linnaeus, 1753
- Genus Corallodendron P. Miller, 1754 accepted as Erythrina Linnaeus, 1753
- Genus Corallospartium J.B. Armstrong, 1881 accepted as Carmichaelia R. Brown in J. Lindley, 1825
- Genus Cordaea K.P.J. Sprengel, 1831 accepted as Cyamopsis A.P. de Candolle, 1825
- Genus Cordeauxia W.B. Hemsley, 1907
- Genus Cordyla Loureiro, 1790
- Genus Corema J.S. Presl in Berchtold & J.S. Presl, 1830-1835
- Genus Corethrodendron F.E.L. Fischer & T.F.J. Basiner in T.F.J. Basiner, 1845 accepted as Hedysarum Linnaeus, 1753
- Genus Cornicina (A.P. de Candolle) Boissier, 1840 accepted as Anthyllis Linnaeus, 1753
- Genus Corniola Adanson, 1763
- Genus Coronilla Linnaeus, 1753
- Genus Corothamnus (W.D.J. Koch) K.B. Presl, 1845
- Genus Corothamus C. Presl, 1844 accepted as Corothamnus (W.D.J. Koch) K.B. Presl, 1845
- Genus Coroya Pierre, 1899 accepted as Dalbergia Linnaeus f., 1782
- Genus Corynella A.P. de Candolle, 1825 accepted as Poitea Ventenat, 1807
- Genus Corynitis K.P.J. Sprengel, 1827
- Genus Cosmiusa Alefeld, 1866 accepted as Parochetus F. Hamilton ex D. Don, 1825
- Genus Cotylelobiopsis F. Heim, 1892
- Genus Coublandia Aublet, 1775 accepted as Muellera Linnaeus f., 1782
- Genus Coulteria Kunth in Humboldt, Bonpland & Kunth, 1824 accepted as Caesalpinia Linnaeus, 1753
- Genus Coumarouna Aublet, 1775 accepted as Dipteryx Schreber, 1791
- Genus Courbari Adanson, 1763
- Genus Courbaril P. Miller, 1754
- Genus Coursetia A.P. de Candolle, 1825
- Genus Cowellocassia N.L. Britton, 1930 accepted as Crudia Schreber, 1789
- Genus Cracca Bentham in Bentham & Oersted, 1853 accepted as Coursetia A.P. de Candolle, 1825
- Genus Cracca Linnaeus, 1753 accepted as Tephrosia Persoon, 1807
- Genus Cracca Medikus, 1787
- Genus Cracca J. Hill, 1756
- Genus Craccina Steven, 1856
- Genus Crafordia Rafinesque, 1814
- Genus Craibia Harms & Dunn in Dunn, 1911
- Genus Craibioxylon Y. Lemoigne, 1978 †
- Genus Cranocarpus Bentham in C.F.P. Martius, 1859
- Genus Craspedolobium Harms, 1921
- Genus Cratylia C.F.P. Martius ex Bentham, 1837
- Genus Crepidotropis Walpers, 1840
- Genus Crimaea I.T. Vassilczenko, 1979 accepted as Medicago Linnaeus, 1753
- Genus Crimea accepted as Medicago Linnaeus, 1753
- Genus Cristonia J.H. Ross, 2001
- Genus Crotalaria Linnaeus, 1753
- Genus Crotolaria Scopoli, 1777
- Genus Crotularius Medikus, 1787
- Genus Cruddasia D. Prain in G. King & D. Prain, 1898
- Genus Crudia Schreber, 1789
- Genus Crudya A.J.G.K. Batsch, 1825 accepted as Crudia Schreber, 1789
- Genus Cruminium Desvaux, 1826
- Genus Cryphiantha Ecklon & Zeyher, 1836
- Genus Cryptolobus K.P.J. Sprengel, 1818
- Genus Cryptophaeseolus Kuntze accepted as Canavalia Adanson, 1763
- Genus Cryptophaseolus O. Kuntze, 1891 accepted as Canavalia Adanson, 1763
- Genus Cryptorrhynchus Nevski, 1937 accepted as Astragalus Linnaeus, 1753
- Genus Cryptosema C.F. Meisner in J.G. Lehmann, 1848
- Genus Cryptosepalum Bentham in Bentham & J.D. Hooker, 1865
- Genus Ctenodon Baillon, 1870
- Genus Ctenophyllum P.A. Rydberg, 1905 accepted as Astragalus Linnaeus, 1753
- Genus Cuba Scopoli, 1777 accepted as Tachigali Aublet, 1775
- Genus Cujunia Alefeld, 1861
- Genus Cullen Medikus, 1787
- Genus Cuparilla Rafinesque, 1838
- Genus Cupulanthus J. Hutchinson, 1964 accepted as Gastrolobium R. Brown in W.T. Aiton, 1811
- Genus Cyamopsis A.P. de Candolle, 1825
- Genus Cyanobotrys Zuccarini, 1845
- Genus Cyanospermum R. Wight & Arnott, 1843
- Genus Cyanostremma Bentham ex W.J. Hooker & Arnott, 1840 accepted as Calopogonium Desvaux, 1826
- Genus Cyanothyrsus Harms in Engler & Prantl, 1897 accepted as Daniellia J.J. Bennett, 1854
- Genus Cyathostegia (Bentham) Schery, 1950
- Genus Cyclas Schreber, 1789 accepted as Crudia Schreber, 1789
- Genus Cyclocarpa Afzelius ex I. Urban, 1884
- Genus Cyclogyne Bentham ex J. Lindley, 1839 accepted as Swainsona R.A. Salisbury, 1806
- Genus Cyclolobium Bentham, 1837
- Genus Cyclomorium Walpers, 1843
- Genus Cyclopia Ventenat, 1808
- Genus Cylicodiscus Harms in Engler & Prantl, 1897
- Genus Cylindrokelupha Kostermans, 1954 accepted as Archidendron F. von Mueller, 1865
- Genus Cylipogon Rafinesque, 1819
- Genus Cylista W. Aiton, 1789 accepted as Rhynchosia Loureiro, 1790
- Genus Cymbosema Bentham, 1840
- Genus Cymbosepalum J.G. Baker, 1895 accepted as Haematoxylum Linnaeus, 1753
- Genus Cymonetra Roberty, 1954
- Genus Cynometra Linnaeus, 1753
- Genus Cynometrophyllum H. Weyland & K. Kilpper, 1963 †
- Genus Cynometroxylon K.A. Chowdhury & S.S. Ghosh, 1946 †
- Genus Cynomora R.A. Hedwig, 1806
- Genus Cyphocalyx K.B. Presl, 1845
- Genus Cyrtotropis Wallich, 1830 accepted as Apios Fabricius, 1759
- Genus Cyrtoxiphus Harms in Engler & Prantl, 1897 accepted as Cylicodiscus Harms in Engler & Prantl, 1897
- Genus Cystium Steven, 1856 accepted as Astragalus Linnaeus, 1753
- Genus Cystopora Lunell, 1916
- Genus Cytisanthus Lang, 1843
- Genus Cytisis accepted as Cytisus Desfontaines, 1798
- Genus Cytisogenista Duhamel du Monceau, 1755
- Genus Cytiso-genista Duhamel du Monceau, 1755
- Genus Cytisophyllum Lang, 1843
- Genus Cytisopsis Jaubert & Spach, 1844
- Genus Cytisus Desfontaines, 1798
- Genus Cytisus Linnaeus, 1753 accepted as Cytisophyllum Lang, 1843
- Genus Dactiphyllon Rafinesque, 1818
- Genus Dahlstedtia Malme, 1905
- Genus Dalbergia Linnaeus f., 1782
- Genus Dalbergiella E.G. Baker, 1928
- Genus Dalbergioxylon C.G.K. Ramanujam, 1960 †
- Genus Dalbergites Kuntze in Post & O. Kuntze, 1903 †
- Genus Dalbergites E.W. Berry, 1916 †
- Genus Dalea Linnaeus, 1758
- Genus Dalhousiea Wallich ex Bentham, 1837
- Genus Damapana Adanson, 1763 accepted as Smithia W. Aiton, 1789
- Genus Daniellia J.J. Bennett, 1854
- Genus Dansera Steenis, 1948 accepted as Dialium Linnaeus, 1767
- Genus Daprainia H. Ohashi & K. Ohashi in Ohashi et al., 2019
- Genus Darlingtonia A.P. de Candolle, 1825 accepted as Desmanthus Willdenow, 1806
- Genus Darwinia Rafinesque, 1817 accepted as Sesbania Scopoli, 1777
- Genus Dasiogyna Rafinesque, 1832-1833
- Genus Daubentonia A.P. de Candolle, 1825 accepted as Sesbania Scopoli, 1777
- Genus Daubentoniopsis Rydberg, 1923 accepted as Sesbania Scopoli, 1777
- Genus Daviesia J.E. Smith, 1798
- Genus Decorsea R. Viguier, 1951
- Genus Deguelia Aublet, 1775
- Genus Delaportea Thorel ex Gagnepain, 1911 accepted as Acacia P. Miller, 1754
- Genus Delaria N.A. Desvaux, 1826
- Genus Delgadoa F.S. Santos, Snak & L.P. Queiroz, , 2022 accepted as Delgadoana U.B. Deshmukh, M.B. Shende, E.S. Reddy & A.J. Mungole, 2023
- Genus Delgadoana U.B. Deshmukh, M.B. Shende, E.S. Reddy & A.J. Mungole, 2023
- Genus Delonix Rafinesque, 1837
- Genus Dendrema Rafinesque, 1838
- Genus Dendrobrychis (A.P. de Candolle) A.I. Galushko, 1976 accepted as Onobrychis P. Miller, 1754
- Genus Dendrolobium (R. Wight & Arnott) Bentham in Miquel, 1852
- Genus Dendrospartum Spach, 1845
- Genus Denisophyton accepted as Caesalpinia Linnaeus, 1753
- Genus Denisophytum R. Viguier, 1948 accepted as Caesalpinia Linnaeus, 1753
- Genus Dermatophyllum Scheele, 1848
- Genus Derris Loureiro, 1790
- Genus Desmanthus Willdenow, 1806
- Genus Desmodiastrum (D. Prain) A. Pramanik & K. Thothathri, 1986
- Genus Desmodiocassia N.L. Britton & J.N. Rose, 1930 accepted as Senna P. Miller, 1754
- Genus Desmodiopsis (A.K. Schindler) H. Ohashi & K. Ohashi in Ohashi et al., 2018
- Genus Desmodium Desvaux, 1813
- Genus Desmodophyllum Unger, 1850 †
- Genus Desmofischera Holthuis in Holthuis & H.J. Lamarck, 1942 accepted as Desmodium Desvaux, 1813
- Genus Despeleza Nieuwland, 1914 accepted as Lespedeza A. Michaux, 1803
- Genus Detarium A.L. Jussieu, 1789
- Genus Dewevrea M. Micheli, 1898
- Genus Dewindtia E. De Wildeman, 1902 accepted as Cryptosepalum Bentham in Bentham & J.D. Hooker, 1865
- Genus Dialanthera Rafinesque, 1838
- Genus Dialium Linnaeus, 1767
- Genus Diallobus Rafinesque, 1838
- Genus Diallosperma Rafinesque, 1838
- Genus Diaxulon Rafinesque, 1838
- Genus Dibrachion L.R. Tulasne, 1843
- Genus Dicerma A.P. de Candolle, 1825 accepted as Aphyllodium (A.P. de Candolle) Gagnepain, 1916
- Genus Dichilus A.P. de Candolle, 1825
- Genus Dichosema Bentham in Endlicher et al., 1837 accepted as Mirbelia J.E. Smith, 1805
- Genus Dichrostachyoxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Dichrostachys (A.P. de Candolle) R. Wight & Arnott, 1834
- Genus Dicorynia Bentham, 1840
- Genus Dicraeopetalum Harms, 1902
- Genus Dicymbe Spruce ex Bentham & J.D. Hooker, 1865
- Genus Dicymbopsis Ducke, 1950 accepted as Dicymbe Spruce ex Bentham & J.D. Hooker, 1865
- Genus Didelotia Baillon, 1865
- Genus Didymopelta Regel & Schmalhausen, 1877 accepted as Astragalus Linnaeus, 1753
- Genus Diesingia Endlicher, 1832 accepted as Psophocarpus Necker ex A.P. de Candolle, 1825
- Genus Diholcos Rydberg, 1906 accepted as Astragalus Linnaeus, 1753
- Genus Dillwynia J.E. Smith, 1805
- Genus Dillwynia A.W. Roth, 1806 accepted as Rothia Persoon, 1807
- Genus Dimorpha Schreber, 1791
- Genus Dimorphandra H.W. Schott in K.P.J. Sprengel, 1827
- Genus Dinizia Ducke, 1922
- Genus Dioclea Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Diotolotus Tausch, 1842
- Genus Dipelta Regel & Schmalhausen, 1877
- Genus Dipetalanthus A. Chevalier, 1946 accepted as Hymenostegia (Bentham) Harms in Engler & Prantl, 1897
- Genus Diphaca Loureiro, 1790 accepted as Ormocarpum Palisot de Beauvois, 1810 (?)
- Genus Diphaea accepted as Ormocarpum Palisot de Beauvois, 1810 (?)
- Genus Diphyllarium Gagnepain, 1915
- Genus Diphyllites O. Heer, 1883 †
- Genus Diphysa N.J. Jacquin, 1760
- Genus Diplolobium (Bentham) H.G.L. Reichenbach, 1841 accepted as Mirbelia J.E. Smith, 1805
- Genus Diplolobium F. von Mueller, 1863
- Genus Diplonyx Rafinesque, 1817 accepted as Wisteria Nuttall, 1818
- Genus Diploprion Viviani, 1824
- Genus Diplotax Rafinesque, 1838
- Genus Diplotheca Hochstetter, 1846 accepted as Astragalus Linnaeus, 1753
- Genus Diplotropis Bentham, 1837
- Genus Dipogon Liebmann, 1854
- Genus Dipteryx Schreber, 1791
- Genus Diptychandra Tulasne, 1843
- Genus Discolobium Bentham, 1837
- Genus Discrepoparicutis W.L. Kovach & D.L. Dilcher, 1984 †
- Genus Distemonanthus Bentham in Bentham & J.D. Hooker, 1865
- Genus Disterepta Rafinesque, 1838
- Genus Disynstemon R. Viguier, 1951
- Genus Ditramexa accepted as Senna P. Miller, 1754
- Genus Ditremexa Rafinesque, 1838 accepted as Senna P. Miller, 1754
- Genus Doga (Baillon) T. Nakai, 1943 accepted as Storckiella B.C. Seemann, 1861
- Genus Dolichites Unger, 1850 †
- Genus Dolicholus Medikus, 1787 accepted as Rhynchosia Loureiro, 1790
- Genus Dolichonemia C.G.D. Nees, 1821
- Genus Dolichopsis Hassler, 1907
- Genus Dolichos Linnaeus, 1753
- Genus Dolichovigna Hayata, 1920 accepted as Vigna G. Savi, 1824
- Genus Dollinera Endlicher, 1840 accepted as Desmodium Desvaux, 1813
- Genus Donia G. Don & D. Don in G. Don, 1832 accepted as Clianthus Solander ex J. Lindley, 1835
- Genus Doodia Roxburgh, 1832
- Genus Dorychnium Moench, 1794
- Genus Dorycnium P. Miller, 1754
- Genus Dorycnopsis Boissier, 1839
- Genus Drebbelia Zollinger & Moritzi, 1846
- Genus Drepanocarpus G.F.W. Meyer, 1818 accepted as Machaerium Persoon, 1807
- Genus Drepanolobus T. Nuttall ex J. Torrey & A. Gray, 1838 accepted as Syrmatium Vogel, 1836
- Genus Drepaphyla Rafinesque, 1838
- Genus Drepilia Rafinesque, 1837
- Genus Droogmansia De Wildeman, 1902
- Genus Drymospartum K.B. Presl, 1845
- Genus Dsmodium accepted as Desmodium Desvaux, 1813
- Genus Duchassaingia Walpers, 1851 accepted as Erythrina Linnaeus, 1753
- Genus Duckeophyllum P.S. Herendeen & D.L. Dilcher, 1990 †
- Genus Dugandia N.L. Britton & E.P. Killip, 1936
- Genus Dumasia A.P. de Candolle, 1825
- Genus Dunbaria R. Wight & Arnott, 1834
- Genus Duparquetia Baillon, 1865
- Genus Dupuya J.H. Kirkbride, 2005
- Genus Dussia Krug & Urban ex Taubert in Engler & Prantl, 1892
- Genus Duvalia Bonpland, 1816 accepted as Hypocalyptus Thunberg, 1800
- Genus Dysolobium (Bentham) Prain, 1897
- Genus Eaplosia Rafinesque, 1837
- Genus Earleocassia N.L. Britton in N.L. Britton & J.N. Rose, 1930 accepted as Senna P. Miller, 1754
- Genus Ebenidium Jaubert & Spach, 1843
- Genus Ebenopsis N.L. Britton & J.N. Rose, 1928
- Genus Ebenus Linnaeus, 1753
- Genus Eburnax Rafinesque, 1836
- Genus Ecastaphyllum P. Browne, 1756 accepted as Dalbergia Linnaeus f., 1782
- Genus Ecastophyllum Small, 1933 accepted as Dalbergia Linnaeus f., 1782
- Genus Echinocalyx Bentham in Bentham & J.D. Hooker, 1865 accepted as Sindora Miquel, 1861
- Genus Echinocassia N.L. Britton & J.N. Rose, 1930 accepted as Senna P. Miller, 1754
- Genus Echinodiscus (A.P. de Candolle) Bentham, 1837 accepted as Pterocarpus N.J. Jacquin, 1763
- Genus Echinolobium Desvaux, 1813
- Genus Echinosophora Nakai, 1923 accepted as Sophora Linnaeus, 1753
- Genus Echinosparton (Spach) Fourreau, 1868
- Genus Echinospartum (Spach) Fourreau, 1868
- Genus Echirospermum Fr. Allemão ex Saldanha da Gama, 1865 accepted as Caesalpinia Linnaeus, 1753
- Genus Echyrospermum H.W. Schott in K.F.A. von Schreibers, 1822 accepted as Caesalpinia Linnaeus, 1753
- Genus Ecuadendron D.A. Neill, 1998
- Genus Edbakeria R. Viguier, 1948 accepted as Pearsonia Dümmer, 1912
- Genus Edusaron Medikus, 1787
- Genus Edwardsia Salisbury, 1808 accepted as Sophora Linnaeus, 1753
- Genus Eilemanthus Hochstetter, 1846
- Genus Elayuna Rafinesque, 1838 accepted as Piliostigma Hochstetter, 1846
- Genus Eleiotis A.P. de Candolle, 1825
- Genus Elephantorrhiza Bentham, 1841 accepted as Entada Adanson, 1763
- Genus Eliasofructus P.S. Herendeen & D.L. Dilcher, 1990 †
- Genus Eligmocarpus R. Capuron, 1968
- Genus Elizabetha Schomburgk ex Bentham, 1840
- Genus Emelista Rafinesque, 1838
- Genus Emerimnum accepted as Dalbergia Linnaeus f., 1782
- Genus Emerus P. Miller, 1754 accepted as Hippocrepis Linnaeus, 1753
- Genus Emerus O. Kuntze, 1891
- Genus Eminia Taubert, 1891
- Genus Enantiophyllites H.R. Göppert & G.C. Berendt in G.C. Berendt, 1845 †
- Genus Enantiosparton K.H.E. Koch, 1869 accepted as Genista Linnaeus, 1753
- Genus Endertia Steenis & Wit, 1947
- Genus Endespermum Blume, 1823
- Genus Endiusa Alefeld, 1859
- Genus Endomallus Gagnepain, 1915 accepted as Cajanus Adanson, 1763
- Genus Endosamara R. Geesink, 1984
- Genus Englerodendron Harms, 1907
- Genus Entada Adanson, 1763
- Genus Entadopsis N.L. Britton in N.L. Britton & J.N. Rose, 1928 accepted as Entada Adanson, 1763
- Genus Enterolobium C.F.P. Martius, 1837
- Genus Enterolobiumoxylon D.K. Pérez-Lara, E. Estrada-Ruiz & C. Castañeda-Posadas, 2021 †
- Genus Entrerrioxylon A.I. Lutz, 1981 †
- Genus Eomimosoidea W.L. Crepet & D.L. Dilcher, 1977 †
- Genus Eperua Aublet, 1775
- Genus Epistemum Walpers, 1840
- Genus Erebinthus J. Mitchell, 1769 accepted as Tephrosia Persoon, 1807
- Genus Eremosparton F.E.L. Fischer & C.A. Meyer, 1841
- Genus Eriander Winkler, 1908
- Genus Erichsenia W.B. Hemsley, 1905
- Genus Erinacea Adanson, 1763
- Genus Eriocarpaea Bertoloni, 1843
- Genus Eriosema (A.P. de Candolle) Desvaux, 1826
- Genus Eriosema (A.P. de Candolle) G. Don, 1832 accepted as Eriosema (A.P. de Candolle) Desvaux, 1826
- Genus Eriosema E. Meyer, 1832 accepted as Eriosema (A.P. de Candolle) Desvaux, 1826
- Genus Erophaca Boissier, 1840
- Genus Errazurizia R.A. Philippi, 1872
- Genus Ervilia Link, 1822 accepted as Vicia Linnaeus, 1753
- Genus Ervites G. Saporta, 1862 †
- Genus Ervum Linnaeus, 1753 accepted as Vicia Linnaeus, 1753
- Genus Erythrina Linnaeus, 1753
- Genus Erythrophleum Afzelius ex R. Brown in Denham & Clapperton, 1826
- Genus Erythrophloeoxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Erythrostemon Klotzsch in Link, Klotzsch & Otto, 1844
- Genus Esclerona Rafinesque, 1838
- Genus Etaballia Bentham, 1840
- Genus Euacacioxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Euchilopsis F. von Mueller, 1882
- Genus Euchilus R. Brown ex W.T. Aiton, 1811
- Genus Euchlora Ecklon & Zeyher, 1836 accepted as Lotononis (A.P. de Candolle) Ecklon & Zeyher, 1836
- Genus Euchresta J.J. Bennett in J.J. Bennett & R. Brown, 1840
- Genus Euilus C. Steven, 1856
- Genus Euriosma Desvaux, 1826 accepted as Eriosema (A.P. de Candolle) Desvaux, 1826
- Genus Eurypetalum Harms, 1910
- Genus Eutaxia R. Brown ex W.T. Aiton, 1811
- Genus Euteline Rafinesque, 1838
- Genus Eversmannia Bunge in K.C.T.F. Goebel, 1838
- Genus Ewersmannia accepted as Eversmannia Bunge in K.C.T.F. Goebel, 1838
- Genus Exostyles H.W. Schott in K.P.J. Sprengel, 1827
- Genus Eysenhardtia Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Ezoloba B.-E. van Wyk & J.S. Boatwright, 2011
- Genus Faba P. Miller, 1754 accepted as Vicia Linnaeus, 1753
- Genus Faboidea Bowerbank, 1840 †
- Genus Fabricia Scopoli, 1777
- Genus Factorovskya A. Eig, 1927 accepted as Medicago Linnaeus, 1753
- Genus Fagelia A.P. de Candolle, 1825 accepted as Bolusafra O. Kuntze, 1891
- Genus Faidherbia A. Chevalier, 1934
- Genus Fairchildia N.L. Britton & J.N. Rose, 1930
- Genus Fakeloba Rafinesque, 1838
- Genus Falcata J.F. Gmelin, 1792 accepted as Amphicarpaea S. Elliott ex Nuttall, 1818
- Genus Falcataria (I. Nielsen) R.C. Barneby & J.W. Grimes, 1996
- Genus Falcatula Brotero, 1801
- Genus Falcicutis W. Schneider, 1969 †
- Genus Farnesia Gasparrini, 1838 accepted as Acacia P. Miller, 1754
- Genus Farnesiana accepted as Acacia P. Miller, 1754
- Genus Fedorouia accepted as Ormosia G. Jackson, 1811
- Genus Fedorovia Yakovlev, 1971 accepted as Ormosia G. Jackson, 1811
- Genus Feidanthus C. Steven, 1856
- Genus Felixia P. Platen, 1908 †
- Genus Fenugraecum Adanson, 1763
- Genus Feracacia N.L. Britton & León, 1928
- Genus Ferreirea Fr. Allemão, 1851 accepted as Sweetia K.P.J. Sprengel, 1825
- Genus Ferrumequinum Medikus, 1787 accepted as Ferrum-equinum Medikus, 1787
- Genus Ferrum-equinum Medikus, 1787
- Genus Feuillea accepted as Inga P. Miller, 1754
- Genus Feuilleea O. Kuntze, 1891 accepted as Inga P. Miller, 1754
- Genus Fichtelites Unger in Endlicher, 1842 †
- Genus Fiebrigiella Harms, 1908
- Genus Fillaea Guillemin & Perrottet in Guillemin, Perrottet & A. Richard, 1832 accepted as Erythrophleum Afzelius ex R. Brown in Denham & Clapperton, 1826
- Genus Fillaeopsis Harms, 1899
- Genus Fishlockia N.L. Britton & J.N. Rose, 1928 accepted as Acacia P. Miller, 1754
- Genus Fissicalyx Bentham, 1860
- Genus Flemingia Roxburgh ex W.T. Aiton, 1812
- Genus Flundula Rafinesque, 1837
- Genus Foenugraecum Ludwig, 1757
- Genus Foenumgraecum Séguier, 1754 accepted as Foenum-Graecum Séguier, 1754
- Genus Foenum-Graecum Séguier, 1754
- Genus Folianthera Rafinesque, 1838
- Genus Folliculigera Pasquale, 1867 accepted as Trigonella Linnaeus, 1753
- Genus Fontainea Newberry, 1895 †
- Genus Fordia W.B. Hemsley in Forbes & W.B. Hemsley, 1886
- Genus Fornasinia A. Bertoloni, 1849
- Genus Gabonius B.A. Mackinder & J.J. Wieringa, 2013
- Genus Gagnebina Necker ex A.P. de Candolle, 1825
- Genus Gagnebinia C.P.J. Sprengel, 1830 accepted as Gagnebina Necker ex A.P. de Candolle, 1825
- Genus Gajanus O. Kuntze, 1891
- Genus Gajati Adanson, 1763
- Genus Galactia P. Browne, 1756
- Genus Galearia K.B. Presl, 1831
- Genus Galedupa Lamarck, 1788 accepted as Millettia R. Wight & Arnott, 1834
- Genus Galega Linnaeus, 1753
- Genus Gamochilum Walpers, 1840
- Genus Gamwellia E.G. Baker, 1935 accepted as Gleditsia Linnaeus, 1753
- Genus Garugandra Grisebach, 1879 accepted as Gleditsia Linnaeus, 1753
- Genus Gastrolobium R. Brown in W.T. Aiton, 1811
- Genus Gatesia A. Bertoloni, 1848
- Genus Gaumerocassia N.L. Britton in N.L. Britton & J.N. Rose, 1930 accepted as Senna P. Miller, 1754
- Genus Geissaspis R. Wight & Arnott, 1834
- Genus Gelala G.E. Rumphius accepted as Erythrina Linnaeus, 1753
- Genus Gelrebia E. Gagnon & G.P. Lewis, 2016
- Genus Genista Duhamel du Monceau, 1755
- Genus Genista Linnaeus, 1753
- Genus Genistaspartium Duhamel du Monceau, 1755 accepted as Genista-spartium Duhamel du Monceau, 1755
- Genus Genista-spartium Duhamel du Monceau, 1755
- Genus Genistella Moench, 1794
- Genus Genistella Ortega, 1773 accepted as Genista Linnaeus, 1753
- Genus Genistidium I.M. Johnston, 1941
- Genus Genistoides Moench, 1794
- Genus Geoffraea N.J. Jacquin, 1760
- Genus Geoffroea N.J. Jacquin, 1760
- Genus Geolobus Rafinesque, 1836
- Genus Geoprumnon Rydberg in J.K. Small, 1903 accepted as Astragalus Linnaeus, 1753
- Genus Gigalobium P. Browne, 1756 accepted as Entada Adanson, 1763
- Genus Giganthemum Welwitsch, 1859 accepted as Camoensia Welwitsch ex Bentham & J.D. Hooker, 1865
- Genus Gigasiphon Drake del Castillo in Grandidier, 1902
- Genus Gilbertiodendron J. Léonard, 1952
- Genus Gilletiodendron Vermoesen, 1923
- Genus Ginannia Scopoli, 1777
- Genus Glandula Medikus, 1787
- Genus Glaux J. Hill, 1756
- Genus Glaux Medikus, 1787
- Genus Gleditschia accepted as Gleditsia Linnaeus, 1753
- Genus Gleditschiacanthus C. Lakowitz, 1895 †
- Genus Gleditsia Linnaeus, 1753
- Genus Gleditsioxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Gliricidia Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Glottidium Desvaux, 1813 accepted as Sesbania Scopoli, 1777
- Genus Glottis Medikus, 1787
- Genus Glycine Willdenow, 1802
- Genus Glycine Linnaeus, 1753
- Genus Glycinopsis (A.P. de Candolle) O. Kuntze, 1891 accepted as Periandra Martius ex Bentham, 1837
- Genus Glycyrrhisa accepted as Glycyrrhiza Linnaeus, 1753
- Genus Glycyrrhiza Linnaeus, 1753
- Genus Glycyrrhizopsis Boissier & Balansa in Boissier, 1856
- Genus Goebelia Bunge ex Boissier, 1872 accepted as Sophora Linnaeus, 1753
- Genus Goetzea H.G.L. Reichenbach, 1829
- Genus Goldmania J.N. Rose in M. Micheli, 1903 accepted as Microlobius K.B. Presl, 1845
- Genus Gompholobium J.E. Smith, 1798
- Genus Goniogyna A.P. de Candolle, 1825 accepted as Crotalaria Linnaeus, 1753
- Genus Goniorrhachis Taubert, 1892
- Genus Goniorrhachisinoxylon T.L. Dutra, L.C.A. Martínez & T. Wilberger, 2023 †
- Genus Gonocytisus Spach, 1845
- Genus Gonsii Adanson, 1763 accepted as Adenanthera Linnaeus, 1753
- Genus Goodia R.A. Salisbury, 1806
- Genus Gorskia Bolle in W.C.H. Peters, 1861 accepted as Guibourtia J.J. Bennett, 1857
- Genus Gossweilerodendron Harms, 1925
- Genus Gourliea Gillies ex W.J. Hooker & Arnott, 1833 accepted as Geoffroea N.J. Jacquin, 1760
- Genus Grammocarpus (Seringe) G. Gasparrini, 1853
- Genus Graphiosa Alefeld, 1861
- Genus Grazielodendron H.C. de Lima, 1983
- Genus Gretheria R. Duno & B.M. Torke in Tamayo-Cen et al., 2022
- Genus Greuteria A. Amirahmadi & K. Osaloo, 2013
- Genus Griffonia Baillon, 1865
- Genus Grimaldia Schrank, 1805 accepted as Chamaecrista Moench, 1794
- Genus Griselinia Scopoli, 1777
- Genus Grona Loureiro, 1790 accepted as Desmodium Desvaux, 1813
- Genus Guaymasia N.L. Britton & J.N. Rose, 1930 accepted as Coulteria Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Gueldenstaedtia F.E.L. Fischer, 1823
- Genus Guianodendron R. Schütz Rodrigues & A.M.G. de Azevedo, 2006
- Genus Guibourtia J.J. Bennett, 1857
- Genus Guilandina Linnaeus, 1753 accepted as Caesalpinia Linnaeus, 1753
- Genus Guillandina accepted as Guilandina Linnaeus, 1753
- Genus Guillandinodes O. Kuntze, 1891
- Genus Guinetia M. de L. Rico & M. Sousa, 2000
- Genus Gumifera Rafinesque, 1838
- Genus Gussonea Parlatore, 1838
- Genus Gwilymia A.G. de Lima, J. de Paula-Souza & V.R. Scalon in Lima et al., 2022
- Genus Gymnocladus Lamarck, 1785
- Genus Gynophoraria Rydberg, 1929 accepted as Astragalus Linnaeus, 1753
- Genus Haematoxyllum Scopoli, 1777
- Genus Haematoxylon accepted as Haematoxylum Linnaeus, 1753
- Genus Haematoxylum Linnaeus, 1753
- Genus Haitimimosa N.L. Britton in N.L. Britton & J.N. Rose, 1928 accepted as Mimosa Linnaeus, 1753
- Genus Halicacabus (Bunge) Nevski, 1937 accepted as Astragalus Linnaeus, 1753
- Genus Halimodendron F.E.L. Fischer ex A.P. de Candolle, 1825
- Genus Hallia Thunberg, 1799 accepted as Psoralea Linnaeus, 1753
- Genus Hallia Jaume Saint-Hilaire, 1812
- Genus Hamaria Fourreau, 1868
- Genus Hamatolobium Fenzl, 1842(?)
- Genus Hammatolobium Fenzl, 1842(?)
- Genus Hamosa Medikus, 1787 accepted as Astragalus Linnaeus, 1753
- Genus Hansemannia K.M. Schumann, 1887 accepted as Archidendron F. von Mueller, 1865
- Genus Hanslia A.K. Schindler, 1924 accepted as Desmodium Desvaux, 1813
- Genus Haplormosia Harms in Engler, 1915
- Genus Harashuteria K. Ohashi & H. Ohashi, 2017
- Genus Hardenbergia Bentham in Endlicher et al., 1837
- Genus Hardwickia Roxburgh, 1811
- Genus Harleyodendron R.S. Cowan, 1979
- Genus Harpalyce A.P. de Candolle, 1825
- Genus Havardia J.K. Small, 1901
- Genus Haydonia Wilczek, 1954 accepted as Vigna G. Savi, 1824
- Genus Haymondia A.N. Egan & B. Pan, 2015
- Genus Hebestigma Urban, 1900
- Genus Hecastophyllum accepted as Dalbergia Linnaeus f., 1782
- Genus Hecatandra Rafinesque, 1838
- Genus Hedyphylla C. Steven, 1856 accepted as Astragalus Linnaeus, 1753
- Genus Hedysarum Linnaeus, 1753
- Genus Hegetschweilera Heer & Regel, 1843
- Genus Hegnera Schindler, 1924 accepted as Desmodium Desvaux, 1813
- Genus Heinekenia Webb ex H. Christ, 1887 accepted as Lotus Linnaeus, 1753
- Genus Heinzia Scopoli, 1777 accepted as Dipteryx Schreber, 1791
- Genus Helicotropis A. Delgado, 2011
- Genus Heliodendron G.K. Brown & M.J. Bayly in Brown et al., 2022
- Genus Helminthocarpon A. Richard, 1847 accepted as Vermifrux J.B. Gillett, 1966
- Genus Hemidesma C.S. Rafinesque accepted as Neptunia Loureiro, 1790
- Genus Hemidesmas Rafinesque, 1838
- Genus Hemispadon Endlicher, 1832
- Genus Hepteireca Rafinesque, 1838
- Genus Hererolandia E. Gagnon & G.P. Lewis, 2016
- Genus Hermesias Loefling, 1758 accepted as Brownea N.J. Jacquin, 1760
- Genus Herminiera Guillemin & Perrottet in Guillemin, Perrottet & A. Richard, 1832 accepted as Aeschynomene Linnaeus, 1753
- Genus Herpetica (A.P. de Candolle) Rafinesque, 1838 accepted as Senna P. Miller, 1754
- Genus Herpyza C. Wright in Sauvalle, 1869
- Genus Hesperalbizia R.C. Barneby & J.W. Grimes, 1996
- Genus Hesperastragalus Heller, 1905 accepted as Astragalus Linnaeus, 1753
- Genus Hesperolaburnum Maire, 1949
- Genus Hesperonix Rydberg, 1929 accepted as Astragalus Linnaeus, 1753
- Genus Hesperothamnus T.S. Brandegee, 1919
- Genus Heterocarpaea Scheele, 1848
- Genus Heteroflorum M. Sousa, 2005
- Genus Heterolathus K.B. Presl, 1845
- Genus Heteroloma (Desvaux) H.G.L. Reichenbach, 1829
- Genus Heterostemon Desfontaines, 1818
- Genus Heudusa E.H.F. Meyer, 1836
- Genus Heylandia A.P. de Candolle, 1825 accepted as Crotalaria Linnaeus, 1753
- Genus Hidrosia E.H.F. Meyer, 1836
- Genus Hippocrepis Linnaeus, 1753
- Genus Hippomanica Molina, 1782
- Genus Hoelselia Necker ex A.L. Jussieu in F. Cuvier, 1821
- Genus Hoepfneria Vatke, 1879 accepted as Abrus Adanson, 1763
- Genus Hoffmannseggia Cavanilles, 1798
- Genus Hoffmanseggia Cavanilles, 1798 accepted as Hoffmannseggia Cavanilles, 1798
- Genus Hoita Rydberg, 1919
- Genus Holcophacos Rydberg in J.K. Small, 1903 accepted as Astragalus Linnaeus, 1753
- Genus Holocalyx M. Micheli, 1883
- Genus Holtzea A.K. Schindler, 1926 accepted as Desmodium Desvaux, 1813
- Genus Homalobus Nuttall in J. Torrey & A. Gray, 1838 accepted as Astragalus Linnaeus, 1753
- Genus Hoopesia Buckley, 1861
- Genus Hormocarpus K.P.J. Sprengel, 1831
- Genus Hornera Necker ex A.L. Jussieu in F. Cuvier, 1821
- Genus Hosackia Douglas ex J. Lindley, 1829 accepted as Lotus Linnaeus, 1753
- Genus Hovea R. Brown ex W.T. Aiton, 1812
- Genus Huangtcia H. Ohashi & K. Ohashi in Ohashi et al., 2018
- Genus Huchimingia Z.Q. Song & S.J. Li, 2022
- Genus Huertia J.C. Mutis, 1957
- Genus Hugelroea Steudel, 1840
- Genus Hultholia E. Gagnon & G.P. Lewis, 2016
- Genus Humboldtia M. Vahl, 1794
- Genus Humboldtiella Harms, 1923 accepted as Coursetia A.P. de Candolle, 1825
- Genus Humularia Duvigneaud, 1954
- Genus Huttonella T. Kirk, 1897 accepted as Carmichaelia R. Brown in J. Lindley, 1825
- Genus Hybosema Harms, 1923 accepted as Gliricidia Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Hydrochlorea R.C. Barneby & J.W. Grimes, 1996 accepted as Hydrochorea R.C. Barneby & J.W. Grimes, 1996
- Genus Hydrochorea R.C. Barneby & J.W. Grimes, 1996
- Genus Hylodendron Taubert in Engler & Prantl, 1894
- Genus Hylodesmum H. Ohashi & R.R. Mill, 2000 accepted as Desmodium Desvaux, 1813
- Genus Hymenaea Linnaeus, 1753
- Genus Hymenaeaphyllum Hernández-Damián, Rubalcava-Knoth & Cevallos-Ferriz, 2024 †
- Genus Hymenocarpos G. Savi, 1798
- Genus Hymenolobium Bentham, 1860
- Genus Hymenospron K.P.J. Sprengel, 1827
- Genus Hymenostegia (Bentham) Harms in Engler & Prantl, 1897
- Genus Hypaphorus Hasskarl, 1858 accepted as Erythrina Linnaeus, 1753
- Genus Hypechusa Alefeld, 1860
- Genus Hypocalyptus Thunberg, 1800
- Genus Hypoglottis Fourreau, 1868
- Genus Ibadja A. Chevalier, 1938 accepted as Loesenera Harms in Engler & Prantl, 1897
- Genus Ibatiria W.E. Cooper, 2019
- Genus Ibbetsonia Sims, 1810
- Genus Ichthyomethia P. Browne, 1756 accepted as Piscidia Linnaeus, 1759
- Genus Ichtyomethia Kuntze accepted as Piscidia Linnaeus, 1759
- Genus Icthyoctonum L.H. Boivin ex H.E. Baillon, 1884
- Genus Icuria J.J. Wieringa, 1999
- Genus Imbralyx R. Geesink, 1984 accepted as Fordia W.B. Hemsley in Forbes & W.B. Hemsley, 1886
- Genus Indgofera accepted as Indigofera Linnaeus, 1753
- Genus Indigastrum Jaubert & Spach, 1857
- Genus Indigo Adanson, 1763
- Genus Indigofera Linnaeus, 1753
- Genus Indopiptadenia Brenan, 1955
- Genus Inga P. Miller, 1754
- Genus Ingenhoussia E.H.F. Meyer, 1836
- Genus Ingoxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Inocarpus J.R. Forster & J.G.A. Forster, 1775
- Genus Intsia Du Petit-Thouars, 1806
- Genus Iripa Adanson, 1763
- Genus Isandrina Rafinesque, 1838
- Genus Isoberlineoxylon R.N. Lakhanpal & U. Prakash, 1970 †
- Genus Isoberlinia Craib & Stapf ex Holland, 1911
- Genus Isodesmia G. Gardner, 1843 accepted as Chaetocalyx A.P. de Candolle, 1825
- Genus Isomacrolobium Aubréville & Pellegrin, 1958 accepted as Anthonotha Palisot de Beauvois, 1806
- Genus Isotropis Bentham in Endlicher et al., 1837
- Genus Itaobimia C.T. Rizzini, 1977 accepted as Riedeliella Harms, 1903
- Genus Jacksonago O. Kuntze, 1891
- Genus Jacksonia R. Brown ex J.E. Smith in A. Rees, 1811
- Genus Jacqueshuberia Ducke, 1922
- Genus Jamesia Rafinesque, 1832
- Genus Jansonia R. Kippist, 1847 accepted as Gastrolobium R. Brown in W.T. Aiton, 1811
- Genus Jantungspermum Spagnuolo & Wilf, 2024 †
- Genus Johnia R. Wight & Arnott, 1834 accepted as Neonotonia J.A. Lackey, 1977
- Genus Jonesia Roxburgh, 1795 accepted as Saraca Linnaeus, 1767
- Genus Jonesiella Rydberg, 1906 accepted as Astragalus Linnaeus, 1753
- Genus Julbernardia Pellegrin, 1943
- Genus Jupunba N.L. Britton & J.N. Rose, 1928 accepted as Abarema Pittier, 1927
- Genus Kalappia Kostermans, 1952
- Genus Kaleniczenkia Turczaninow, 1853
- Genus Kamiella I.T. Vassilczenko, 1979 accepted as Medicago Linnaeus, 1753
- Genus Kanaloa D.H. Lorence & K.R. Wood, 1994
- Genus Kanburia J. Compton, S. Mattaphe, Y. Sirichamorn & B.D. Schrire in Compton et al., 2019
- Genus Kaoue Pellegrin, 1933 accepted as Stachyothyrsus Harms in Engler & Prantl, 1897
- Genus Kartalinia S. Brullo, C. Brullo, S. Cambria, Z. Acar, C. Salmeri & G.G.D. Giusso, 2018
- Genus Kebirita T.E. Kramina & D.D. Sokoloff, 2001
- Genus Kennedia Ventenat, 1805
- Genus Kennedya accepted as Kennedia Ventenat, 1805
- Genus Kennedynella Steudel, 1840
- Genus Kentia Adanson, 1763
- Genus Kentrophyta Nuttall in J. Torrey & A. Gray, 1838 accepted as Astragalus Linnaeus, 1753
- Genus Kerstania K.H. Rechinger, 1958 accepted as Lotus Linnaeus, 1753
- Genus Kerstingiella Harms, 1908 accepted as Macrotyloma (R. Wight & Arnott) Verdcourt, 1970
- Genus Keyserlingia Bunge ex Boissier, 1872 accepted as Sophora Linnaeus, 1753
- Genus Kiapasia J.N. Woronow ex A.A. Grossheim, 1939 accepted as Astragalus Linnaeus, 1753
- Genus Kiesera Reinwardt, 1825
- Genus Kingiodendron Harms in Engler & Prantl, 1897
- Genus Kirchnera Opiz, 1858
- Genus Klugiodendron N.L. Britton & E.P. Killip, 1936 accepted as Abarema Pittier, 1927
- Genus Konxikas Rafinesque, 1840 accepted as Lathyrus Linnaeus, 1753
- Genus Koompassia Maingay ex Bentham, 1873
- Genus Koompassioxylon K. Kramer, 1974 †
- Genus Kostyczewa Korshinsky, 1896 accepted as Chesneya Lindley ex Endlicher, 1840
- Genus Kotschya Endlicher in Endlicher & Fenzl, 1839
- Genus Kourbari Adanson, 1763
- Genus Kraunhia C.S. Rafinesque, 1808 accepted as Wisteria Nuttall, 1818
- Genus Krebsia Ecklon & Zeyher, 1836 accepted as Lotononis (A.P. de Candolle) Ecklon & Zeyher, 1836
- Genus Krokeria Moench, 1794
- Genus Kruegeria Scopoli, 1777 accepted as Macrolobium Schreber, 1789
- Genus Kuhnistera Lamarck, 1792 accepted as Dalea Linnaeus, 1758
- Genus Kummerovia accepted as Kummerowia Schindler, 1912
- Genus Kummerowia Schindler, 1912
- Genus Kunstleria D. Prain in G. King, 1897
- Genus Labichea Gaudichaud-Beaupré ex A.P. de Candolle, 1825
- Genus Lablab Adanson, 1763
- Genus Laboucheria F. von Mueller, 1859 accepted as Erythrophleum Afzelius ex R. Brown in Denham & Clapperton, 1826
- Genus Laburnocytisus C.K. Schneider, 1907
- Genus Laburnocytisus W. Trelease, 1933 accepted as Laburnocytisus C.K. Schneider, 1907
- Genus Laburnum Medikus, 1787 accepted as Laburnum Fabricius, 1759
- Genus Laburnum Fabricius, 1759
- Genus Lacara K.P.J. Sprengel, 1822
- Genus Lachesiodendron P.G. Ribeiro, L.P. de Queiroz & M. Luckow in Ribeiro et al., 2018
- Genus Lackeya R.H. Fortunato, L.P. de Queiroz & G.P. Lewis, 1996
- Genus Ladeania A.N. Egan & J.L. Reveal, 2009
- Genus Lagonychium Marschall von Bieberstein, 1819-1820 accepted as Prosopis Linnaeus, 1767
- Genus Lagopus J. Hill, 1756
- Genus Lagopus J.J. Bernhardi, 1800
- Genus Lalage J. Lindley, 1834 accepted as Bossiaea Ventenat, 1800
- Genus Lamottea Pomel, 1870
- Genus Lamprolobium Bentham, 1864
- Genus Lapasathus K.B. Presl, 1845
- Genus Larrea Ortega, 1797 accepted as Hoffmannseggia Cavanilles, 1798
- Genus Lasinia Rafinesque, 1837 accepted as Baptisia Ventenat, 1808
- Genus Lasiobema (Korthals) Miquel, 1855 accepted as Phanera Loureiro, 1790
- Genus Lastila Alefeld, 1861
- Genus Lathriogyna Ecklon & Zeyher, 1836 accepted as Amphithalea Ecklon & Zeyher, 1836
- Genus Lathriogyne accepted as Amphithalea Ecklon & Zeyher, 1836
- Genus Lathyroides Heister ex Fabricius, 1759
- Genus Lathyrus Linnaeus, 1753
- Genus Latrobea C.F. Meisner in J.G.C. Lehmann, 1848
- Genus Latyrus Grenier, 1838
- Genus Layia W.J. Hooker & Arnott, 1833 accepted as Ormosia G. Jackson, 1811
- Genus Lebeckia Thunberg, 1800
- Genus Lebidibia A.H.R. Grisebach, 1866 accepted as Libidibia (A.P. de Candolle) D.F.L. Schlechtendal, 1830
- Genus Lebruniodendron J. Léonard, 1951
- Genus Lecointea A. Ducke, 1922
- Genus Leguminocarpon Göppert, 1855 †
- Genus Leguminocarpum Dotzler, 1937 †
- Genus Leguminosites Bowerbank, 1840 †
- Genus Leguminoxylon K.M. Gupta, 1936 †
- Genus Leiolobium Bentham, 1837
- Genus Lembotropis Grisebach, 1843 accepted as Cytisus Desfontaines, 1798
- Genus Lemurodendron J.-F. Villiers & P. Guinet, 1989
- Genus Lemuropisum H. Perrier de la Bâthie, 1939
- Genus Lennea Klotzsch in Link, Klotzsch & Otto, 1842
- Genus Lens P. Miller, 1754
- Genus Lentilla W.F. Wight ex D. Fairchild, 1912 accepted as Lens P. Miller, 1754
- Genus Leobordea A.R. Delile in L. Laborde, 1830 accepted as Lotononis (A.P. de Candolle) Ecklon & Zeyher, 1836
- Genus Leonardendron A. Aubréville, 1968 accepted as Anthonotha Palisot de Beauvois, 1806
- Genus Leonardoxa A. Aubréville, 1968
- Genus Leonhardia Opiz, 1857
- Genus Leonocassia N.L. Britton, 1930 accepted as Senna P. Miller, 1754
- Genus Lepidocoma Junghuhn, 1845
- Genus Leptidium K.B. Presl, 1845
- Genus Leptis E.H.F. Meyer ex Ecklon & Zeyher, 1836
- Genus Leptocyamus Bentham, 1839 accepted as Glycine Willdenow, 1802
- Genus Leptocytisus C.F. Meisner in J.G.C. Lehmann, 1848
- Genus Leptoderris Dunn, 1910
- Genus Leptodesmia (Bentham) Bentham & J.D. Hooker, 1865
- Genus Leptoglottis A.P. de Candolle, 1827 accepted as Mimosa Linnaeus, 1753
- Genus Leptoglottis A.P. de Candolle ex J. Torrey & A. Gray, 1840 accepted as Mimosa Linnaeus, 1753
- Genus Leptolobium J.R. Th. Vogel, 1837
- Genus Leptolobium Bentham, 1837 accepted as Glycine Willdenow, 1802
- Genus Leptosema Bentham, 1837
- Genus Leptospron (Bentham & J.D. Hooker) A. Delgado, 2011
- Genus Lespedeza A. Michaux, 1803
- Genus Lessertia A.P. de Candolle, 1802
- Genus Leucaena Bentham, 1842
- Genus Leucochloron R.C. Barneby & J.W. Grimes, 1996
- Genus Leucodictyon Dalzell, 1850 accepted as Galactia P. Browne, 1756
- Genus Leucodyction Dalzell, 1850 accepted as Galactia P. Browne, 1756
- Genus Leucomphalos Bentham ex J.E. Planchon, 1848
- Genus Leucopterum Small, 1933
- Genus Leucostegane Prain, 1901
- Genus Leycephyllum Piper, 1924 accepted as Rhynchosia Loureiro, 1790
- Genus Libidibia (A.P. de Candolle) D.F.L. Schlechtendal, 1830 accepted as Caesalpinia Linnaeus, 1753
- Genus Librevillea Hoyle, 1956
- Genus Liebrechtsia De Wildeman, 1902 accepted as Vigna G. Savi, 1824
- Genus Limadendron J.E. Meireles & A.M.G. Azevedo, 2014
- Genus Lingoum Adanson, 1763
- Genus Liparia Linnaeus, 1771
- Genus Lipozygis E.H.F. Meyer, 1836 accepted as Lotononis (A.P. de Candolle) Ecklon & Zeyher, 1836
- Genus Lipusa Alefeld, 1866
- Genus Liquiritia Medikus, 1787
- Genus Listera Adanson, 1763
- Genus Listia E.H.F. Meyer, 1836 accepted as Lotononis (A.P. de Candolle) Ecklon & Zeyher, 1836
- Genus Lithoon Nevski, 1937
- Genus Lobomon Rafinesque, 1836
- Genus Locellaria Welwitsch, 1859
- Genus Loddigesia Sims, 1806 accepted as Hypocalyptus Thunberg, 1800
- Genus Loesenera Harms in Engler & Prantl, 1897
- Genus Lojaconoa E.G. Bobrov, 1967
- Genus Lomoplis Rafinesque, 1838 accepted as Mimosa Linnaeus, 1753
- Genus Lonchocarpus Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Lonchophaca Rydberg, 1929 accepted as Astragalus Linnaeus, 1753
- Genus Lophocarpinia Burkart, 1957
- Genus Lopinus accepted as Lupinus Linnaeus, 1753
- Genus Lotea Medikus, 1787
- Genus Lotodes O. Kuntze, 1891
- Genus Lotononis (A.P. de Candolle) Ecklon & Zeyher, 1836
- Genus Lotophyllus Link, 1831 accepted as Argyrolobium Ecklon & Zeyher, 1836
- Genus Lotus Linnaeus, 1753
- Genus Lourea Necker ex Jaume St.-Hilaire, 1812 accepted as Luorea Necker ex Jaume St.-Hilaire, 1812
- Genus Lourea Necker ex Desvaux, 1813 accepted as Christia Moench, 1802
- Genus Lovanafia M. Peltier, 1972 accepted as Dicraeopetalum Harms, 1902
- Genus Loxidium Ventenat, 1808 accepted as Swainsona R.A. Salisbury, 1806
- Genus Loxospermum Hochstetter, 1846
- Genus Lucaya N.L. Britton & J.N. Rose, 1928
- Genus Ludovicia M.E. Cosson, 1856
- Genus Luetzelburgia Harms, 1922
- Genus Lugaion Rafinesque, 1838
- Genus Lugos Adanson, 1763
- Genus Lumbricidia Vellozo, 1829 accepted as Andira A.L. Jussieu, 1789
- Genus Luorea Necker ex Jaume St.-Hilaire, 1812
- Genus Lupinaster Fabricius, 1759 accepted as Trifolium Linnaeus, 1753
- Genus Lupinophyllum Hutchinson, 1967 accepted as Tephrosia Persoon, 1807
- Genus Lupinus Linnaeus, 1753
- Genus Lupularia (Seringe ex A.P. de Candolle) Opiz, 1852
- Genus Lupulina Noulet, 1837 accepted as Medicago Linnaeus, 1753
- Genus Luzonia Elmer, 1907
- Genus Lyauteya Maire, 1919 accepted as Cytisopsis Jaubert & Spach, 1844
- Genus Lygoplis Rafinesque, 1838
- Genus Lygos Adanson, 1763 accepted as Retama Rafinesque, 1838
- Genus Lysidice Hance, 1867
- Genus Lysiloma Bentham, 1844
- Genus Lysiphyllum (Bentham) H.C.D. de Wit, 1956
- Genus Maackia Ruprecht, 1856
- Genus Machaerites G. Andreánszky, 1954 †
- Genus Machaerium Persoon, 1807
- Genus Macleayia Montrouzier, 1860 accepted as Mac-Leayia Montrouzier, 1860
- Genus Mac-Leayia Montrouzier, 1860
- Genus Macranthus Loureiro, 1790 accepted as Mucuna Adanson, 1763
- Genus Macroberlinia (Harms) Hauman, 1952 accepted as Berlinia Solander ex J.D. Hooker & Bentham in W.J. Hooker, 1849
- Genus Macroceratides Raddi, 1820
- Genus Macrocymbium Walpers, 1853
- Genus Macrolobium Schreber, 1789
- Genus Macrolobium Zippel ex Müller Berol. in Walpers, 1858
- Genus Macrolobium Zippel ex Miquel, 1855
- Genus Macrolotus Harms, 1898
- Genus Macromiscus Turczaninow, 1846
- Genus Macronyx Dalzell, 1850
- Genus Macropsychanthus Harms ex K. Schumann & Lauterbach, 1900
- Genus Macroptilium (Bentham) Urban, 1928
- Genus Macrosamanea N.L. Britton & J.N. Rose, 1936
- Genus Macrosema Steven, 1856
- Genus Macrotropis A.P. de Candolle, 1825 accepted as Ormosia G. Jackson, 1811
- Genus Macrotyloma (R. Wight & Arnott) Verdcourt, 1970
- Genus Macroule Pierce, 1942 accepted as Ormosia G. Jackson, 1811
- Genus Maekawaea H. Ohashi & K. Ohashi, 2020
- Genus Malaparius Miquel, 1858
- Genus Malocchia Savi, 1824
- Genus Mandarus Rafinesque, 1838
- Genus Manganaroa Spegazzini, 1923 accepted as Acacia P. Miller, 1754
- Genus Maniltoa R.H.C.C. Scheffer, 1876
- Genus Manna D. Don, 1825
- Genus Mantiqueira L.P. Queiroz, 2020
- Genus Mantodda Adanson, 1763
- Genus Maraniona C.E. Hughes, G.P. Lewis, A. Daza Yomona & C. Reynel, 2004
- Genus Marcanthus Loureiro, 1790 accepted as Mucuna Adanson, 1763
- Genus Margaritolobium Harms, 1923
- Genus Marina Liebmann, 1854
- Genus Mariosousa D.S. Seigler & J.E. Ebinger, 2006
- Genus Marlimorimia L.P. Queiroz, L.M. Borges, M.F. Simon & P.G. Ribeiro, 2022
- Genus Marmaroxylon Killip, 1940 accepted as Zygia P. Browne, 1756
- Genus Marquartia J.R. Th. Vogel, 1843
- Genus Martia Leandro de Sacramento, 1821
- Genus Martiodendron Gleason, 1935
- Genus Martiusia Bentham, 1840 accepted as Martiodendron Gleason, 1935
- Genus Martiusia J.A. Schultes, 1822
- Genus Martyia E.M. Reid, 1924 †
- Genus Mastersia Bentham in Bentham & J.D. Hooker, 1865
- Genus Maughania Jaume St.-Hilaire, 1813 accepted as Flemingia Roxburgh ex W.T. Aiton, 1812
- Genus Mavia G. Bertoloni, 1850
- Genus Mecopus J.J. Bennett in J.J. Bennett & R. Brown, 1840
- Genus Medica P. Miller, 1754 accepted as Medicago Linnaeus, 1753
- Genus Medicago Linnaeus, 1753
- Genus Medicula Medikus, 1787
- Genus Megalotropis W. Griffith, 1854
- Genus Megastegia G. Don, 1832
- Genus Meibomia Heister ex Fabricius, 1759 accepted as Desmodium Desvaux, 1813
- Genus Meibomites Knowlton, 1926 †
- Genus Meiemianthera Rafinesque, 1838
- Genus Meizotropis J.O. Voigt, 1845
- Genus Meladenia Turczaninow, 1848
- Genus Melanosticta A.P. de Candolle, 1825 accepted as Hoffmannseggia Cavanilles, 1798
- Genus Melanoxylon Schott, 1827
- Genus Melanoxylum H.W. Schott in K.F.A. von Schreibers, 1822 accepted as Melanoxylon Schott, 1827
- Genus Melilobus J. Mitchell, 1769
- Genus Melilota Medikus, 1787
- Genus Melilotoides Heister ex Fabricius, 1763 accepted as Trigonella Linnaeus, 1753
- Genus Melilotus (Linnaeus) P. Miller, 1754
- Genus Meliniella accepted as Melliniella Harms, 1914
- Genus Melinospermum Walpers, 1840 accepted as Dichilus A.P. de Candolle, 1825
- Genus Melisitus Medikus, 1789 accepted as Trigonella Linnaeus, 1753
- Genus Melissitus Medikus, 1789 accepted as Trigonella Linnaeus, 1753
- Genus Melliniella Harms, 1914
- Genus Melolobium Ecklon & Zeyher, 1836
- Genus Mendoravia R. Capuron, 1968
- Genus Menkenia Bubani, 1899-1900
- Genus Meristotropis F.E.L. Fischer & C.A. Meyer, 1843 accepted as Glycyrrhiza Linnaeus, 1753
- Genus Mesoneuron Desfontaines, 1818 accepted as Caesalpinia Linnaeus, 1753
- Genus Metacacioxylon J.-P. Gros, 1984 †
- Genus Metrocynia Du Petit-Thouars, 1806
- Genus Mezcala C.E. Hughes & J.L. Contreras, 2022
- Genus Mezoneuron accepted as Caesalpinia Linnaeus, 1753
- Genus Mezoneurum A.P. de Candolle, 1825 accepted as Caesalpinia Linnaeus, 1753
- Genus Mezonevron Desfontaines, 1818 accepted as Caesalpinia Linnaeus, 1753
- Genus Michelsonia Hauman, 1952
- Genus Micklethwaitia G.P. Lewis & B.D. Schrire, 2004
- Genus Micrantheum K.B. Presl, 1831
- Genus Microberlinia A. Chevalier, 1946
- Genus Microcharis Bentham in Bentham & J.D. Hooker, 1865
- Genus Microlespedeza (Maximowicz) Makino, 1914
- Genus Microlobium Liebmann, 1854 accepted as Apoplanesia K.B. Presl, 1832
- Genus Microlobius K.B. Presl, 1845
- Genus Microphacos Rydberg, 1906 accepted as Astragalus Linnaeus, 1753
- Genus Microphyton Fourreau, 1868
- Genus Micropodium Saporta in Heer, 1861 †
- Genus Micropteryx Walpers, 1851 accepted as Erythrina Linnaeus, 1753
- Genus Microstegia J.B.L. Pierre ex Harms accepted as Gilletiodendron Vermoesen, 1923
- Genus Microtropis E.H.F. Meyer, 1836
- Genus Miediega Bubani, 1899-1900
- Genus Mildbraediodendron Harms in Mildbraed, 1911
- Genus Milletioxylon Y. Lemoigne, 1978 †
- Genus Millettia R. Wight & Arnott, 1834
- Genus Millettioxylon N. Awasthi, 1967 †
- Genus Mimosa Linnaeus, 1753
- Genus Mimosaceoxylon R.N. Lakhanpal & U. Prakash, 1970 †
- Genus Mimosites Bowerbank, 1840 †
- Genus Mimosocarpum G. Andreánszky, 1951 †
- Genus Mimosopsis N.L. Britton & J.N. Rose, 1928 accepted as Mimosa Linnaeus, 1753
- Genus Mimosoxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Mimozyganthus Burkart, 1939
- Genus Minkelersia M. Martens & H.G. Galeotti, 1843 accepted as Phaseolus Linnaeus, 1753
- Genus Mirbelia J.E. Smith, 1805
- Genus Miscolobium J.R. Th. Vogel, 1837 accepted as Dalbergia Linnaeus f., 1782
- Genus Mistyllus K.B. Presl, 1832
- Genus Mitostax Rafinesque, 1838
- Genus Moghania Jaume St.-Hilaire, 1813 accepted as Flemingia Roxburgh ex W.T. Aiton, 1812
- Genus Mohlites Unger, 1839 †
- Genus Moldenhawera Schrader, 1802
- Genus Monarthrocarpus Merrill, 1910 accepted as Desmodium Desvaux, 1813
- Genus Monopetalanthus Harms in Engler & Prantl, 1897 accepted as Aphanocalyx D. Oliver, 1870
- Genus Monoplectra Rafinesque, 1817
- Genus Monoplegma Piper, 1920 accepted as Oxyrhynchus T.S. Brandegee, 1912
- Genus Monopteryx Spruce ex Bentham, 1862
- Genus Monoschisma Brenan, 1955 accepted as Pseudopiptadenia S. Rauschert, 1982
- Genus Monosemeion Rafinesque, 1840 accepted as Amorpha Linnaeus, 1753
- Genus Monosemion Rafinesque accepted as Monosemeion Rafinesque, 1840
- Genus Monoteles Rafinesque, 1838
- Genus Montigena P.B. Heenan, 1998 accepted as Swainsona R.A. Salisbury, 1806
- Genus Moparia N.L. Britton & J.N. Rose, 1930 accepted as Hoffmannseggia Cavanilles, 1798
- Genus Mora Bentham, 1839
- Genus Morolobium Kostermans, 1954 accepted as Archidendron F. von Mueller, 1865
- Genus Morongia N.L. Britton, 1894 accepted as Mimosa Linnaeus, 1753
- Genus Moullava Adanson, 1763
- Genus Mouricou Adanson, 1763
- Genus Moutouchi Aublet, 1775
- Genus Mucuna Adanson, 1763
- Genus Mucunites Heer, 1859 †
- Genus Muellera Linnaeus f., 1782
- Genus Muelleranthus J. Hutchinson, 1964
- Genus Mullaghera Bubani, 1899-1900
- Genus Munbya Pomel, 1860
- Genus Mundelia accepted as Mundulea (A.P. de Candolle) Bentham in Miquel, 1852
- Genus Mundubi Adanson, 1763
- Genus Mundulea (A.P. de Candolle) Bentham in Miquel, 1852
- Genus Murtonia Craib, 1912 accepted as Desmodium Desvaux, 1813
- Genus Muxiria Welwitsch, 1859
- Genus Myctirophora Nevski, 1937 accepted as Astragalus Linnaeus, 1753
- Genus Myobroma (Steven) Steven, 1856
- Genus Myriadenus Desvaux, 1813 accepted as Zornia J.F. Gmelin, 1792
- Genus Myrmecodendron N.L. Britton & J.N. Rose, 1928 accepted as Acacia P. Miller, 1754
- Genus Myrocarpoxylon K. Suguio & D. Mussa, 1978 †
- Genus Myrocarpus Freire Allemão, 1847
- Genus Myrospermum N.J. Jacquin, 1760
- Genus Myroxylon Linnaeus f., 1782
- Genus Mysanthus G.P. Lewis & A. Delgado Salinas, 1994
- Genus Mystirophora Nevski accepted as Astragalus Linnaeus, 1753
- Genus Naiadendron A.G. de Lima, J. de Paula-Souza & V.R. Scalon in Lima et al., 2022
- Genus Nanhaia J. Compton & B.D. Schrire in Compton et al., 2019
- Genus Nanogalactia L.P. Queiroz, 2020
- Genus Natrix Moench, 1794
- Genus Nauchea Descourtilz, 1826
- Genus Navidura Alefeld, 1861
- Genus Neanthe P. Browne, 1756
- Genus Needhamia Scopoli, 1777 accepted as Tephrosia Persoon, 1807
- Genus Nefrakis Rafinesque, 1838
- Genus Negretia Ruiz & Pavon, 1794
- Genus Neltuma Rafinesque, 1838
- Genus Nematophyllum F. von Mueller, 1857 accepted as Templetonia R. Brown ex W.T. Aiton, 1812
- Genus Nemcia C. Domin, 1923 accepted as Gastrolobium R. Brown in W.T. Aiton, 1811
- Genus Neoapaloxylon S. Rauschert, 1982
- Genus Neobaronia J.G. Baker, 1884 accepted as Phylloxylon Baillon, 1861
- Genus Neobaronian accepted as Phylloxylon Baillon, 1861
- Genus Neochevalierodendron J. Léonard, 1951
- Genus Neocolletia W.B. Hemsley in Collett & W.B. Hemsley, 1890
- Genus Neocollettia W.B. Hemsley in Collett & W.B. Hemsley, 1890
- Genus Neocracca O. Kuntze, 1898 accepted as Coursetia A.P. de Candolle, 1825
- Genus Neodielsia H. Harms in L. Diels, 1905 accepted as Astragalus Linnaeus, 1753
- Genus Neodunnia R. Viguier, 1950 accepted as Millettia R. Wight & Arnott, 1834
- Genus Neoharmsia R. Viguier, 1951
- Genus Neomimosa N.L. Britton & J.N. Rose, 1928 accepted as Mimosa Linnaeus, 1753
- Genus Neonotonia J.A. Lackey, 1977
- Genus Neopapilionia T. Hazra, M. Hazra & M.A. Khan, 2021 †
- Genus Neorautanenia Schinz, 1899
- Genus Neorudolphia N.L. Britton in N.L. Britton & P. Wilson, 1924
- Genus Nepa P.B. Webb, 1852 accepted as Ulex Linnaeus, 1753
- Genus Nephrodesmus A.K. Schindler, 1916
- Genus Nephromedia accepted as Desmodium Desvaux, 1813
- Genus Nephromeria (Bentham) Schindler, 1924 accepted as Desmodium Desvaux, 1813
- Genus Neptunia Loureiro, 1790
- Genus Nesphostylis Verdcourt, 1970
- Genus Neurocarpon accepted as Clitoria Linnaeus, 1753
- Genus Neurocarpum Desvaux, 1813 accepted as Clitoria Linnaeus, 1753
- Genus Neuroscapha Tulasne, 1843 accepted as Lonchocarpus Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Neustanthus Bentham in Miquel, 1852 accepted as Pueraria A.P. de Candolle, 1825
- Genus Newtonia Baillon, 1888
- Genus Nicarago N.L. Britton & J.N. Rose, 1930 accepted as Tara Molina, 1789
- Genus Nicholsonia J.B. Spanoghe, 1836 accepted as Nicolsonia A.P. de Candolle, 1825
- Genus Nicolsonia A.P. de Candolle, 1825 accepted as Desmodium Desvaux, 1813
- Genus Nictitella Rafinesque, 1838
- Genus Nimiria Prain ex Craib, 1927 accepted as Acacia P. Miller, 1754
- Genus Niopa (Bentham) N.L. Britton & J.N. Rose, 1927 accepted as Anadenanthera Spegazzini, 1923
- Genus Nissolia N.J. Jacquin, 1760
- Genus Nissolia P. Miller, 1754
- Genus Nissolius Medikus, 1787 accepted as Machaerium Persoon, 1807
- Genus Nissoloides M.E. Jones, 1933-1935
- Genus Nochotta S.G. Gmelin, 1774
- Genus Nogra Merrill, 1935
- Genus Nomismia R. Wight & Arnott, 1834 accepted as Rhynchosia Loureiro, 1790
- Genus Normandiodendron J.J.G. Léonard, 1993
- Genus Notodon Urban, 1899 accepted as Poitea Ventenat, 1807
- Genus Notonia R. Wight & G.A.W. Arnott, 1834
- Genus Notospartium J.D. Hooker, 1857 accepted as Carmichaelia R. Brown in J. Lindley, 1825
- Genus Nubigena Rafinesque, 1838
- Genus Nygae accepted as Acacia P. Miller, 1754
- Genus Oberholzeria W. Swanepoel, M.M. le Roux, M.F. Wojciechowski & A.E. van Wyk, 2015
- Genus Oblinga accepted as Zygia P. Browne, 1756
- Genus Obolinga R.C. Barneby, 1989 accepted as Cojoba N.L. Britton & J.N. Rose, 1928
- Genus Ochreata (M. Lojacono) E.G. Bobrov, 1967
- Genus Ochrus P. Miller, 1754
- Genus Octelisia Rafinesque, 1838
- Genus Oddoniodendron De Wildeman, 1925
- Genus Odonia Bertoloni, 1822
- Genus Oedicephalus Nevski, 1937 accepted as Astragalus Linnaeus, 1753
- Genus Oedmannia Thunberg, 1800
- Genus Ohashia X.Y. Zhu & R.P. Zhang, 2021
- Genus Ohwia H. Ohashi, 1999 accepted as Desmodium Desvaux, 1813
- Genus Oleiocarpon Dwyer, 1965 accepted as Dipteryx Schreber, 1791
- Genus Oligostemon Bentham in Bentham & J.D. Hooker, 1865 accepted as Duparquetia Baillon, 1865
- Genus Olneya A. Gray, 1854
- Genus Onix Medikus, 1787 accepted as Astragalus Linnaeus, 1753
- Genus Onobruchus Medikus, 1787
- Genus Onobrychis P. Miller, 1754
- Genus Ononis Linnaeus, 1753
- Genus Opalatoa Aublet, 1775
- Genus Ophiocarpus (Bunge) S.S. Ikonnikov, 1977 accepted as Astragalus Linnaeus, 1753
- Genus Ophiocaulon Rafinesque, 1838
- Genus Ophrestia Forbes, 1948
- Genus Orbexilum Rafinesque, 1832
- Genus Orectospermum H.W. Schott in K.F.A. von Schreibers, 1822 accepted as Peltogyne Vogel, 1837
- Genus Oreophysa (Bunge ex Boissier) Bornmüller, 1905
- Genus Oreophysaysa accepted as Oreophysa (Bunge ex Boissier) Bornmüller, 1905
- Genus Ormocarpopsis R. Viguier, 1951
- Genus Ormocarpum Palisot de Beauvois, 1810 (?)
- Genus Ormosia G. Jackson, 1811
- Genus Ormosiopsis Ducke, 1925 accepted as Ormosia G. Jackson, 1811
- Genus Ormosioxylon M.B. Bande & U. Prakash, 1980 †
- Genus Ornithopodioides Heister ex Fabricius, 1759 accepted as Coronilla Linnaeus, 1753
- Genus Ornithopodium P. Miller, 1754
- Genus Ornithopus Linnaeus, 1753
- Genus Oroba Medikus, 1787
- Genus Orobella K.B. Presl in W.R. Weitenweber, 1837
- Genus Orobus Linnaeus, 1753 accepted as Lathyrus Linnaeus, 1753
- Genus Orophaca (J. Torrey & A. Gray) N.L. Britton in N.L. Britton & A. Brown, 1897 accepted as Astragalus Linnaeus, 1753
- Genus Orphanodendron R.C. Barneby & J.W. Grimes, 1990
- Genus Orthodanum E.H.F. Meyer, 1836 accepted as Rhynchosia Loureiro, 1790
- Genus Ortholobium accepted as Archidendron F. von Mueller, 1865
- Genus Ortholotus Fourreau, 1868
- Genus Orthotropis Bentham ex Lindley, 1839
- Genus Oryxis A. Delgado Salinas & G.P. Lewis, 1997
- Genus Osodendron E.J.M. Koenen, 2022
- Genus Ostryocarpus J.D. Hooker in W.J. Hooker, 1849
- Genus Ostryoderris Dunn, 1911 accepted as Aganope Miquel, 1855
- Genus Ostryodium Desvaux, 1813
- Genus Otholobium C.H. Stirton in R.M. Polhill & P.H. Raven, 1981
- Genus Otoptera A.P. de Candolle, 1825
- Genus Otosema Bentham in Miquel, 1852 accepted as Millettia R. Wight & Arnott, 1834
- Genus Ototropis C.G.D. Nees, 1839
- Genus Ottleya D.D. Sokoloff, 1999 accepted as Lotus Linnaeus, 1753
- Genus Ougeinia Bentham in Miquel, 1852 accepted as Desmodium Desvaux, 1813
- Genus Ougenioxylon U. Prakash & P.P. Tripathi, 1977 †
- Genus Oustropis G. Don, 1832
- Genus Outea Aublet, 1775 accepted as Macrolobium Schreber, 1789
- Genus Oxitropis accepted as Oxytropis A.P. de Candolle, 1802
- Genus Oxycladium F. von Mueller, 1857
- Genus Oxydium J.J. Bennett in J.J. Bennett & R. Brown, 1840
- Genus Oxyglottis (Bunge) Nevski, 1937 accepted as Astragalus Linnaeus, 1753
- Genus Oxylobium H.C. Andrews, 1807
- Genus Oxypogon Rafinesque, 1819
- Genus Oxyramphis N. Wallich ex Meisner, 1837
- Genus Oxyrhynchus T.S. Brandegee, 1912
- Genus Oxystigma Harms in Engler & Prantl, 1897
- Genus Oxytes (A.K. Schindler) H. Ohashi & K. Ohashi in Ohashi et al., 2018
- Genus Oxytropis A.P. de Candolle, 1802
- Genus Pachecoa Standley & Steyermark, 1943 accepted as Chapmannia J. Torrey & A. Gray, 1838
- Genus Pachyelasma Harms, 1913
- Genus Pachyraphea K.B. Presl, 1845
- Genus Pachyrhizus L.C. Richard ex A.P. de Candolle, 1825
- Genus Padbruggea Miquel, 1855 accepted as Callerya Endlicher, 1843
- Genus Pahudia Miquel, 1855 accepted as Afzelia J.E. Smith, 1798
- Genus Pahudioxylon K.A. Chowdhury, S.S. Ghosh & M.H. Kazmi, 1960 †
- Genus Painteria N.L. Britton & J.N. Rose, 1928
- Genus Palaeolobium Unger, 1850 †
- Genus Paleobowdichia P.S. Herendeen, D.B.O.S. Cardoso, F. Herrera & S.L. Wing, 2022 †
- Genus Palmerocassia Britton, 1930 accepted as Senna P. Miller, 1754
- Genus Paloue Aublet, 1775
- Genus Palovea A.L. de Jussieu, 1789 accepted as Paloue Aublet, 1775
- Genus Paloveopsis Cowan, 1957
- Genus Panciatica Picciuoli, 1783 accepted as Cadia Forsskål, 1775
- Genus Panisia Rafinesque, 1838
- Genus Panthocarpa Rafinesque, 1825
- Genus Panurea Spruce ex Bentham & J.D. Hooker, 1865
- Genus Panzera Willdenow, 1799
- Genus Papilionacea J.-R. Tao, 1992 †
- Genus Papilionaceophyllum Kräusel & Weyland, 1959 †
- Genus Papilionites E.W. Berry, 1924 †
- Genus Papilionopsis Steenis, 1960 accepted as Desmodium Desvaux, 1813
- Genus Paraberlinia Pellegrin, 1943 accepted as Julbernardia Pellegrin, 1943
- Genus Paracacioxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Paracalyx S.I. Ali, 1968
- Genus Paradaniellia Rolfe, 1912 accepted as Daniellia J.J. Bennett, 1854
- Genus Paraderris (Miquel) R. Geesink, 1984
- Genus Paraglycine F.J. Hermann, 1962 accepted as Ophrestia Forbes, 1948
- Genus Paragoodia I.R. Thompson, 2011
- Genus Paralbizia accepted as Archidendron F. von Mueller, 1865
- Genus Paralbizzia Kostermans, 1954 accepted as Archidendron F. von Mueller, 1865
- Genus Parallosa Alefeld, 1859
- Genus Paramachaerium Ducke, 1925
- Genus Paramacrolobium J. Léonard, 1954
- Genus Paramesus K.B. Presl, 1831
- Genus Parapiptadenia Brenan, 1963
- Genus Parapiptadenioxylon R.S. Ramos, M. Brea, D.M. Kröhling & S.A. Contreras, 2022 †
- Genus Pararchidendron I. Nielsen in I. Nielsen, P. Guinet & T. Baretta-Kuipers, 1984
- Genus Parasamanea Kostermans, 1954 accepted as Albizia Durazzini, 1772
- Genus Parasenegalia D.S. Seigler & J.E. Ebinger in Seigler et al., 2017
- Genus Paraserianthes I. Nielsen in I. Nielsen, P. Guinet & T. Baretta-Kuipers, 1984
- Genus Paraspalathus K.B. Presl, 1845
- Genus Paratephrosia K. Domin, 1912 accepted as Tephrosia Persoon, 1807
- Genus Parenterolobium Kostermans, 1954 accepted as Albizia Durazzini, 1772
- Genus Parivoa Aublet, 1775 accepted as Eperua Aublet, 1775
- Genus Parkia R. Brown in Denham & Clapperton, 1826
- Genus Parkinsonia Linnaeus, 1753
- Genus Parochetus F. Hamilton ex D. Don, 1825
- Genus Parosela Cavanilles, 1802 accepted as Dalea Linnaeus, 1758
- Genus Parryella Torrey & A. Gray in A. Gray, 1868
- Genus Parvileguminophyllum P.S. Herendeen & D.L. Dilcher, 1990 †
- Genus Paryphosphaera H. Karsten, 1862 accepted as Parkia R. Brown in Denham & Clapperton, 1826
- Genus Passaea Adanson, 1763 accepted as Ononis Linnaeus, 1753
- Genus Patagonium Schrank, 1809 accepted as Adesmia A.P. de Candolle, 1825
- Genus Patrinia Rafinesque, 1819 accepted as Vexibia Rafinesque, 1825
- Genus Paubrasilia E. Gagnon, H.C. Lima & G.P. Lewis, 2016
- Genus Pauletia Cavanilles, 1799 accepted as Bauhinia Linnaeus, 1753
- Genus Pearsonia Dümmer, 1912
- Genus Pedina Steven, 1856
- Genus Pediomellum Rydberg accepted as Pediomelum Rydberg, 1919
- Genus Pediomelum Rydberg, 1919
- Genus Pedleya H. Ohashi & K. Ohashi in Ohashi et al., 2018
- Genus Pedrosia Lowe, 1856
- Genus Peekelia Harms, 1920 accepted as Cajanus Adanson, 1763
- Genus Peiranisia Rafinesque, 1838 accepted as Senna P. Miller, 1754
- Genus Pelecinus P. Miller, 1754
- Genus Pelecynthis E.H.F. Meyer, 1835
- Genus Pellegriniodendron J. Léonard, 1955
- Genus Peltiera D.J. Du Puy & J.-N. Labat in J.-N. Labat & D.J. Du Puy, 1997
- Genus Peltogyne Vogel, 1837
- Genus Peltophoropsis Chiovenda, 1915 accepted as Parkinsonia Linnaeus, 1753
- Genus Peltophoroxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Peltophorum (Vogel) Bentham, 1840
- Genus Pentaclethra Bentham, 1840
- Genus Pentadynamis R. Brown in Sturt, 1849 accepted as Crotalaria Linnaeus, 1753
- Genus Pentaphyllon Persoon, 1807
- Genus Peraltea Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Periandra Martius ex Bentham, 1837
- Genus Pericaulon Rafinesque, 1837
- Genus Pericopsis Thwaites, 1864
- Genus Pericopsoxylon N. Awasthi, 1979 †
- Genus Perima Rafinesque, 1838 accepted as Entada Adanson, 1763
- Genus Perittium Vogel, 1837
- Genus Perlebia C.F.P. Martius, 1828
- Genus Permia Rafinesque accepted as Perima Rafinesque, 1838
- Genus Perrottetia A.P. de Candolle, 1825
- Genus Petagnana J.F. Gmelin, 1792
- Genus Petaladenium Ducke, 1938
- Genus Petalogyne F. von Mueller, 1856 accepted as Petalostylis R. Brown in Sturt, 1849
- Genus Petalostemon A. Michaux, 1803 accepted as Dalea Linnaeus, 1758
- Genus Petalostemum A. Michaux, 1803
- Genus Petalostylis R. Brown in Sturt, 1849
- Genus Petalvitemon Rafinesque, 1819
- Genus Peteria A. Gray, 1852
- Genus Petteria K.B. Presl, 1845
- Genus Phaca Linnaeus, 1753 accepted as Astragalus Linnaeus, 1753
- Genus Phacites Colla in Borson, 1829 †
- Genus Phacomene Rydberg, 1929 accepted as Astragalus Linnaeus, 1753
- Genus Phacopsis P.A. Rydberg, 1906 accepted as Astragalus Linnaeus, 1753
- Genus Phaenohoffmannia O. Kuntze, 1891 accepted as Pearsonia Dümmer, 1912
- Genus Phalseolus accepted as Phaseolus Linnaeus, 1753
- Genus Phanera Loureiro, 1790
- Genus Phasellus Medikus, 1787 accepted as Strophostyles S. Elliott, 1823
- Genus Phaselous accepted as Phaseolus Linnaeus, 1753
- Genus Phaseolites Unger, 1850 †
- Genus Phaseolodes C.E.O. Kuntze, 1891
- Genus Phaseoloides Duhamel du Monceau, 1755 accepted as Wisteria Nuttall, 1818
- Genus Phaseolus Linnaeus, 1753
- Genus Phellocarpus Bentham, 1837 accepted as Pterocarpus N.J. Jacquin, 1763
- Genus Philamnos (Steven) Steven, 1856
- Genus Philenoptera Hochstetter ex A. Richard, 1847
- Genus Phlebosprium F.W. Junghuhn, 1845
- Genus Phragmocassia N.L. Britton & J.N. Rose, 1930 accepted as Senna P. Miller, 1754
- Genus Phusicarpos Poiret in Lamarck & Poiret, 1816
- Genus Phylacium J.J. Bennett in J.J. Bennett & R. Brown, 1840
- Genus Phyllobotrys (Spach) Fourreau, 1869
- Genus Phyllocalyx A. Richard, 1847
- Genus Phyllocarpus Riedel ex Tulasne, 1843 accepted as Barnebydendron J.H. Kirkbride, 1999
- Genus Phyllocarpus Riedel ex Endlicher, 1842
- Genus Phyllocytisus (W.D.J. Koch) Fourreau, 1868 accepted as Cytisophyllum Lang, 1843
- Genus Phyllodium Desvaux, 1813
- Genus Phyllodoce Link, 1831
- Genus Phyllolobium Fischer ex K.P.J. Sprengel, 1818
- Genus Phyllomatia (R. Wight & Arnott) Bentham, 1837
- Genus Phyllota (A.P. de Candolle) Bentham in Endlicher et al., 1837
- Genus Phylloxylon Baillon, 1861
- Genus Physalobium Steudel, 1841
- Genus Physanthillis P.E. Boissier accepted as Physanthyllis P.E. Boissier, 1840
- Genus Physanthyllis P.E. Boissier, 1840 accepted as Tripodion Medikus, 1787
- Genus Physocalyx Nuttall accepted as Oxytropis A.P. de Candolle, 1802
- Genus Physolobium Bentham in Hügel, 1837 accepted as Kennedia Ventenat, 1805
- Genus Physondra Rafinesque, 1832
- Genus Physostigma J.H. Balfour, 1861
- Genus Phytomorula Kofoid, 1914
- Genus Pickeringia Nuttall in Torrey & A. Gray, 1840
- Genus Pictarena L.E. Becklund in Becklund & Ayers, 2022
- Genus Pictetia A.P. de Candolle, 1825
- Genus Piliostigma Hochstetter, 1846
- Genus Pillera Endlicher, 1833
- Genus Piptadenia Bentham, 1840
- Genus Piptadeniastrum Brenan, 1955
- Genus Piptadeniopsis Burkart, 1944
- Genus Piptadenioxylon K. Suguio & D. Mussa, 1978 †
- Genus Piptanthus Sweet, 1828
- Genus Piptomeris Turczaninow, 1853
- Genus Pirottantha Spegazzini, 1917 accepted as Plathymenia Bentham, 1840
- Genus Piscida accepted as Piscidia Linnaeus, 1759
- Genus Piscidia Linnaeus, 1759
- Genus Piscipula Loefling, 1758 accepted as Piscidia Linnaeus, 1759
- Genus Pisophaca Rydberg, 1929 accepted as Astragalus Linnaeus, 1753
- Genus Pisum Linnaeus, 1753
- Genus Pitcheria Nuttall, 1834 accepted as Rhynchosia Loureiro, 1790
- Genus Pithecellobium C.F.P. Martius, 1837
- Genus Pithecelobium accepted as Pithecellobium C.F.P. Martius, 1837
- Genus Pithecodendron Spegazzini, 1923
- Genus Pithecollobium accepted as Pithecellobium C.F.P. Martius, 1837
- Genus Pithecolobium accepted as Pithecellobium C.F.P. Martius, 1837
- Genus Pityrocarpa (Bentham) Britton & Rose, 1928
- Genus Placolobium Miquel, 1858 accepted as Ormosia G. Jackson, 1811
- Genus Plagiocarpus Bentham, 1873
- Genus Plagiolobium R. Sweet, 1827 accepted as Hovea R. Brown ex W.T. Aiton, 1812
- Genus Plagiosiphon Harms in Engler & Prantl, 1897
- Genus Plagiostigma K.B. Presl, 1845
- Genus Plagiotropis F. von Mueller, 1857 accepted as Swainsona R.A. Salisbury, 1806
- Genus Planarium Desvaux, 1826
- Genus Plaso Adanson, 1763 accepted as Butea Roxburgh ex Willdenow, 1802
- Genus Plathymenia Bentham, 1840
- Genus Platycelyphium Harms, 1905
- Genus Platychilum Delaunay, 1815
- Genus Platycyamus Bentham in C.F.P. Martius, 1862
- Genus Platylobium J.E. Smith, 1793
- Genus Platymiscium Vogel, 1837
- Genus Platyosprion (C. Maximowicz) C. Maximowicz, 1877 accepted as Cladrastis Rafinesque, 1824
- Genus Platypodium Vogel, 1837
- Genus Platysema Bentham, 1837 accepted as Centrosema (A.P. de Candolle) Bentham, 1837
- Genus Platysepalum Welwitsch ex J.G. Baker in D. Oliver, 1871
- Genus Platystylis Sweet, 1828
- Genus Plectotropis [misspelling] accepted as Plectrotropis H.C.F. Schumacher, 1827
- Genus Plectrotropis H.C.F. Schumacher, 1827 accepted as Vigna G. Savi, 1824
- Genus Pleiospora W.H. Harvey, 1859 accepted as Pearsonia Dümmer, 1912
- Genus Pleurolobus Jaume Saint-Hilaire, 1812 accepted as Desmodium Desvaux, 1813
- Genus Pleuromenes Rafinesque, 1838
- Genus Ploca J. de Loureiro ex B.A. Gomes, 1868 accepted as Christia Moench, 1802
- Genus Pocillum Tulasne, 1844
- Genus Pocockia Seringe ex A.P. de Candolle, 1825 accepted as Trigonella Linnaeus, 1753
- Genus Podalyria Lamarck, 1793
- Genus Podalyria Willdenow, 1799
- Genus Podalyriophyllum C. von Ettingshausen, 1895 †
- Genus Podiopetalum Hochstetter, 1841
- Genus Podlechiella A.A. Maassoumi & S. Kazempour Osaloo, 2003
- Genus Podocarpium (Bentham) Y.C. Yang & P.H. Huang, 1979 accepted as Desmodium Desvaux, 1813
- Genus Podocarpium A. Braun ex E. Stizenberger, 1851 †
- Genus Podochrea Fourreau, 1868
- Genus Podocytisus Boissier & Heldreich in Boissier, 1849
- Genus Podogonium Heer, 1859 †
- Genus Podogynium Taubert, 1896 accepted as Zenkerella Taubert in Engler & Prantl, 1894
- Genus Podolobium R. Brown ex W.T. Aiton, 1811
- Genus Podolotus Royle, 1835
- Genus Podopetalum F. von Mueller, 1882 accepted as Ormosia G. Jackson, 1811
- Genus Poecilanthe Bentham, 1860
- Genus Poecilocarpus Nevski, 1937 accepted as Astragalus Linnaeus, 1753
- Genus Poeppigia C. Presl, 1830
- Genus Pogocyba Pierre, 1899 accepted as Gleditsia Linnaeus, 1753
- Genus Pogocybe accepted as Gleditsia Linnaeus, 1753
- Genus Pogonostigma Boissier, 1843
- Genus Poinciana Linnaeus, 1753 accepted as Caesalpinia Linnaeus, 1753
- Genus Poincianella Britton & J.N. Rose, 1930 accepted as Caesalpinia Linnaeus, 1753
- Genus Poiretia Ventenat, 1807
- Genus Poiretia J.E. Smith, 1808
- Genus Poissonia Baillon, 1870
- Genus Poitea Ventenat, 1807
- Genus Polhillia C.H. Stirton, 1986
- Genus Polhillides H. Ohashi & K. Ohashi in Ohashi et al., 2019
- Genus Poltolobium K.B. Presl, 1845
- Genus Polylobium Ecklon & Zeyher, 1836
- Genus Polystemonanthus Harms in Engler & Prantl, 1897
- Genus Polytropia K.B. Presl, 1831
- Genus Pomaria Cavanilles, 1799
- Genus Pongam Adanson, 1763 accepted as Millettia R. Wight & Arnott, 1834
- Genus Pongamia Adanson, 1763 accepted as Millettia R. Wight & Arnott, 1834
- Genus Pongamiopsis R. Viguier, 1950
- Genus Pongelion Adanson, 1763 accepted as Adenanthera Linnaeus, 1753
- Genus Popanax accepted as Acacia P. Miller, 1754
- Genus Poponax Rafinesque, 1838 accepted as Acacia P. Miller, 1754
- Genus Possira Aublet, 1775 accepted as Swartzia Schreber, 1791
- Genus Priestleya A.P. de Candolle, 1825 accepted as Liparia Linnaeus, 1771
- Genus Prioria Grisebach, 1860
- Genus Priotropis R. Wight & Arnott, 1834 accepted as Crotalaria Linnaeus, 1753
- Genus Prosopidastrum A. Burkart, 1964
- Genus Prosopis Linnaeus, 1767
- Genus Prosopisinoxylon L.C.A. Martínez, 2010 †
- Genus Protomimosoidea W.L. Crepet & D.W. Taylor, 1986 †
- Genus Pryona Miquel, 1858 accepted as Crudia Schreber, 1789
- Genus Pseudacacia Moench, 1794
- Genus Pseudalbizzia Britton & J.N. Rose, 1928
- Genus Pseudarthria R. Wight & Arnott, 1834
- Genus Pseudeminia Verdcourt, 1970
- Genus Pseudoacacia Duhamel du Monceau, 1755 accepted as Pseudo-Acacia Duhamel du Monceau, 1755
- Genus Pseudo-Acacia Duhamel du Monceau, 1755
- Genus Pseudoberlinia Duvigneaud, 1950
- Genus Pseudocadia Harms, 1902 accepted as Cadia Forsskål, 1775
- Genus Pseudocassia Britton & J.N. Rose, 1930 accepted as Senna P. Miller, 1754
- Genus Pseudocopaiva N.L. Britton & P. Wilson, 1929 accepted as Guibourtia J.J. Bennett, 1857
- Genus Pseudocynometra O. Kuntze in Post & O. Kuntze, 1903 accepted as Maniltoa R.H.C.C. Scheffer, 1876
- Genus Pseudoentada N.L. Britton & J.N. Rose, 1928 accepted as Adenopodia K.B. Presl, 1851
- Genus Pseudoeriosema Hauman, 1955
- Genus Pseudoëriosema Hauman, 1955 represented as Pseudoeriosema Hauman, 1955
- Genus Pseudoglycine F.J. Hermann, 1962 accepted as Ophrestia Forbes, 1948
- Genus Pseudolotus K.H. Rechinger, 1958 accepted as Lotus Linnaeus, 1753
- Genus Pseudomachaerium Hassler, 1906 accepted as Nissolia N.J. Jacquin, 1760
- Genus Pseudomacrolobium Hauman, 1952
- Genus Pseudomelissitus P.N. Ovczinnikov, 1978 accepted as Medicago Linnaeus, 1753
- Genus Pseudopiptadenia S. Rauschert, 1982
- Genus Pseudopiptadenioxylon R.S. Ramos, M. Brea, D.M. Kröhling & S.A. Contreras, 2022 †
- Genus Pseudoprosopis Harms, 1902
- Genus Pseudosamanea Harms, 1930
- Genus Pseudosenegalia D.S. Seigler & J.E. Ebinger in Seigler et al., 2017
- Genus Pseudosindora Symington, 1944 accepted as Copaifera Linnaeus, 1762
- Genus Pseudosophora (A.P. de Candolle) Sweet, 1830 accepted as Sophora Linnaeus, 1753
- Genus Pseudovigna (Harms) Verdcourt, 1970
- Genus Pseudovouapa N.L. Britton & E.P. Killip, 1936 accepted as Macrolobium Schreber, 1789
- Genus Psilolepus K.B. Presl, 1845
- Genus Psilorhegma (Vogel) Britton & J.N. Rose, 1930
- Genus Psophocarpus Necker ex A.P. de Candolle, 1825
- Genus Psoralea Linnaeus, 1753
- Genus Psoraleopsis F. von Mueller, 1853
- Genus Psoralidium Rydberg, 1919
- Genus Psorobatus Rydberg, 1919 accepted as Errazurizia R.A. Philippi, 1872
- Genus Psorodendron Rydberg, 1919 accepted as Psorothamnus Rydberg, 1919
- Genus Psorothamnus Rydberg, 1919
- Genus Pterocarpus N.J. Jacquin, 1763
- Genus Pterocarpus O. Kuntze, 1891
- Genus Pterocarpus Bergius, 1769
- Genus Pterocarpus Linnaeus, 1754
- Genus Pterocassia N.L. Britton & J.N. Rose, 1930 accepted as Senna P. Miller, 1754
- Genus Pterodon Vogel, 1837
- Genus Pterogyne Tulasne, 1843
- Genus Pterogynoxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Pterolobium R. Brown ex R. Wight & Arnott, 1834
- Genus Pteroloma Desvaux ex Bentham in Miquel, 1852 accepted as Tadehagi H. Ohashi, 1973
- Genus Pteromimosa N.L. Britton, 1928 accepted as Mimosa Linnaeus, 1753
- Genus Pterophacos Rydberg, 1917 accepted as Astragalus Linnaeus, 1753
- Genus Pterospartum (E. Spach) K.H.E. Koch, 1853 accepted as Genista Linnaeus, 1753
- Genus Pterygopodium Harms, 1913 accepted as Oxystigma Harms in Engler & Prantl, 1897
- Genus Ptychocentrum (R. Wight & Arnott) Bentham, 1837
- Genus Ptycholobium Harms in Engler, 1915
- Genus Ptychosema Bentham in Lindley, 1839
- Genus Pueraria A.P. de Candolle, 1825
- Genus Puhuaea H. Ohashi & K. Ohashi in Ohashi et al., 2019
- Genus Pullenia H. Ohashi & K. Ohashi in Ohashi et al., 2018
- Genus Pultenaea J.E. Smith, 1794
- Genus Pungamia Lamarck, 1796 accepted as Millettia R. Wight & Arnott, 1834
- Genus Punjuba N.L. Britton & J.N. Rose, 1928 accepted as Abarema Pittier, 1927
- Genus Pusaetha O. Kuntze, 1891 accepted as Entada Adanson, 1763
- Genus Pycnolobium Saporta in Heer, 1861 †
- Genus Pycnospora R. Brown ex R. Wight & Arnott, 1834
- Genus Pynaertiodendron De Wildeman, 1915 accepted as Cryptosepalum Bentham in Bentham & J.D. Hooker, 1865
- Genus Pyranthus D.J. Du Puy & J-N. Labat, 1995
- Genus Pyrrhotrichia R. Wight & Arnott, 1834
- Genus Quartinia A. Richard, 1840
- Genus Quinata Medikus, 1787
- Genus Quirosia Blanco, 1845 accepted as Crotalaria Linnaeus, 1753
- Genus Racosperma C.F.P. Martius, 1835 accepted as Acacia P. Miller, 1754
- Genus Racospermum accepted as Acacia P. Miller, 1754
- Genus Radiata Medikus, 1789 accepted as Medicago Linnaeus, 1753
- Genus Radiusia H.G.L. Reichenbach, 1829
- Genus Rafinesquia Rafinesque, 1837 accepted as Hosackia Douglas ex J. Lindley, 1829
- Genus Rafnia Thunberg, 1800
- Genus Raimondianthus Harms, 1928 accepted as Chaetocalyx A.P. de Candolle, 1825
- Genus Ramirezella J.N. Rose, 1903
- Genus Ramirezia A. Richard in Sagra, 1846 accepted as Poeppigia C. Presl, 1830
- Genus Ramorinoa Spegazzini, 1924
- Genus Rathkea H.C.F. Schumacher, 1827
- Genus Recordoxylon Ducke, 1934
- Genus Rehsonia L.R. Stritch, 1984 accepted as Wisteria Nuttall, 1818
- Genus Reichardia A.W. Roth, 1821 accepted as Pterolobium R. Brown ex R. Wight & Arnott, 1834
- Genus Reineria Moench, 1802 accepted as Tephrosia Persoon, 1807
- Genus Requienia A.P. de Candolle, 1825
- Genus Resupinaria Rafinesque, 1838
- Genus Retama Rafinesque, 1838
- Genus Rhadinocarpus Vogel, 1838
- Genus Rhetinophloeum G.K.W.H. Karsten, 1862 accepted as Parkinsonia Linnaeus, 1753
- Genus Rhodopis Urban, 1900
- Genus Rhodusia I.T. Vassilczenko, 1972 accepted as Medicago Linnaeus, 1753
- Genus Rhynchium Dulac, 1867
- Genus Rhynchocarpa Backer ex K. Heyne, 1927 accepted as Dialium Linnaeus, 1767
- Genus Rhynchodium K.B. Presl, 1845 accepted as Bituminaria Heister ex Fabricius, 1759
- Genus Rhynchosia Loureiro, 1790
- Genus Rhynchotropis Harms, 1901
- Genus Rhytidomene Rydberg, 1919 accepted as Orbexilum Rafinesque, 1832
- Genus Ricoa R. Duno & B.M. Torke in Tamayo-Cen et al., 2022
- Genus Riedeliella Harms, 1903
- Genus Ripasia Rafinesque, 1837
- Genus Rittera Schreber, 1789 accepted as Swartzia Schreber, 1791
- Genus Rivasgodaya F. Esteve Chueca, 1973 accepted as Genista Linnaeus, 1753
- Genus Riveria Kunth in Humboldt, Bonpland & Kunth, 1825 accepted as Swartzia Schreber, 1791
- Genus Robinia Linnaeus, 1753
- Genus Robinioxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Robrichia (Barneby & J.W.Grimes) A.R.M. Luz & E.R. Souza in Souza et al., 2022
- Genus Robynsia Martens & Galeotti, 1843
- Genus Robynsiophyton Wilczek, 1953
- Genus Rochea Scopoli, 1777
- Genus Roea Hügel ex Bentham in Endlicher et al., 1837
- Genus Rothia Persoon, 1807
- Genus Ruddia Yakovlev, 1971 accepted as Ormosia G. Jackson, 1811
- Genus Rudolphia Willdenow, 1801
- Genus Rudua F. Maekawa, 1955 accepted as Phaseolus Linnaeus, 1753
- Genus Rueppelia A. Richard, 1847 accepted as Aeschynomene Linnaeus, 1753
- Genus Rueppellia A. Richard accepted as Rueppelia A. Richard, 1847
- Genus Rupertia J.W. Grimes, 1990
- Genus Russellodendron Britton & J.N. Rose, 1930
- Genus Ruteria Medikus, 1787
- Genus Rydbergiella F. Fedde & P. Sydow in F. Fedde, 1906
- Genus Ryncholeucaena Britton & J.N. Rose, 1928 accepted as Leucaena Bentham, 1842
- Genus Sabinea A.P. de Candolle, 1825 accepted as Poitea Ventenat, 1807
- Genus Sagotia Duchassaing & Walpers, 1851
- Genus Sakoanala R. Viguier, 1951
- Genus Saldania T.R. Sim, 1909 accepted as Ormocarpum Palisot de Beauvois, 1810 (?)
- Genus Salken Adanson, 1763 accepted as Derris Loureiro, 1790
- Genus Salpinganthium G.O. Poinar & K.L. Chambers, 2021 †
- Genus Saltzwedelia P.G. Gaertner, B. Meyer & Scherbius, 1800
- Genus Salweenia E.G. Baker, 1935
- Genus Samanea (Bentham) Merrill, 1916
- Genus Sanjappa E.R. Souza & M.V.N. Krishnaraj, 2016
- Genus Saraca Linnaeus, 1767
- Genus Sarcobotrya R. Viguier, 1951 accepted as Kotschya Endlicher in Endlicher & Fenzl, 1839
- Genus Sarcocalyx Walpers, 1839 accepted as Aspalathus Linnaeus, 1753
- Genus Sarcodum Loureiro, 1790
- Genus Sarcophyllus Thunberg, 1799
- Genus Sarothamnus C.F.H. Wimmer, 1832 accepted as Cytisus Desfontaines, 1798
- Genus Sartoria Boissier & Heldreich in Boissier, 1849
- Genus Sassa Bruce ex J.F. Gmelin, 1792 accepted as Albizia Durazzini, 1772
- Genus Sauvallella Rydberg, 1924 accepted as Poitea Ventenat, 1807
- Genus Scaligera Adanson, 1763 accepted as Aspalathus Linnaeus, 1753
- Genus Scandalida Adanson, 1763
- Genus Schefflerodendron Harms, 1901
- Genus Schizolobium Vogel, 1837
- Genus Schizoscyphus K. Schumann ex Taubert, 1890 accepted as Maniltoa R.H.C.C. Scheffer, 1876
- Genus Schizosiphon K.M. Schumann in K.M. Schumann & Hollrung, 1889
- Genus Schleinitzia Warburg ex L.I. Nevling & C.J. Niezgoda, 1978
- Genus Schmidites Schleiden in Schmid & Schleiden, 1855 †
- Genus Schnella Raddi, 1820
- Genus Schotia N.J. Jacquin, 1787
- Genus Schrammia Britton & J.N. Rose, 1930 accepted as Hoffmannseggia Cavanilles, 1798
- Genus Schranckiastrum Hassler, 1919 accepted as Mimosa Linnaeus, 1753
- Genus Schrankia Willdenow, 1806 accepted as Mimosa Linnaeus, 1753
- Genus Sciacassia Britton, 1930 accepted as Senna P. Miller, 1754
- Genus Sciaplea S. Rauschert, 1982 accepted as Dialium Linnaeus, 1767
- Genus Sclerolobium Vogel, 1837 accepted as Tachigali Aublet, 1775
- Genus Sclerothamnus Harms, 1921
- Genus Sclerothamnus R. Brown ex W.T. Aiton, 1811 accepted as Eutaxia R. Brown ex W.T. Aiton, 1811
- Genus Scolobus C.S. Rafinesque, 1819 accepted as Thermopsis R. Brown ex W.T. Aiton, 1811
- Genus Scolodia Rafinesque, 1838
- Genus Scorodophloeus Harms, 1901
- Genus Scorpioides J. Hill, 1756
- Genus Scorpiurus Linnaeus, 1753
- Genus Scorpius Medikus, 1787
- Genus Scorpius Moench, 1794
- Genus Scottia R. Brown ex W.T. Aiton, 1812 accepted as Bossiaea Ventenat, 1800
- Genus Scytalis E.H.F. Meyer, 1836 accepted as Vigna G. Savi, 1824
- Genus Sebipira Martius, 1828
- Genus Secula J.K. Small, 1913 accepted as Ctenodon Baillon, 1870
- Genus Securidaca P. Miller, 1754
- Genus Securidaca Linnaeus, 1753
- Genus Securigera A.P. de Candolle in Lamarck & A.P. de Candolle, 1805
- Genus Securina Medikus, 1787
- Genus Seemannantha Alefeld, 1862 accepted as Tephrosia Persoon, 1807
- Genus Segurola Larrañaga, 1927
- Genus Selerothamnus Harms, 1921
- Genus Sellocharis Taubert, 1889
- Genus Sellunia Alefeld, 1859
- Genus Semeionotis Schott, 1829
- Genus Semetor Rafinesque, 1838
- Genus Senegalia Rafinesque, 1838
- Genus Senna P. Miller, 1754
- Genus Sennia Chiovenda, 1932
- Genus Sensitiva Rafinesque, 1838
- Genus Serawaia J. Compton & B.D. Schrire in Compton et al., 2019
- Genus Seretoberlinia Duvigneaud, 1950 accepted as Julbernardia Pellegrin, 1943
- Genus Serialbizzia Kostermans, 1954 accepted as Albizia Durazzini, 1772
- Genus Serianthes Bentham, 1844
- Genus Sericandra Rafinesque, 1838
- Genus Sericeocassia Britton, 1930 accepted as Senna P. Miller, 1754
- Genus Sertula O. Kuntze, 1891
- Genus Sesban Adanson, 1763 accepted as Sesbania Scopoli, 1777
- Genus Sesbania Scopoli, 1777
- Genus Sewerzowia Regel & Schmalhausen, 1877 accepted as Astragalus Linnaeus, 1753
- Genus Shuteria R. Wight & Arnott, 1834
- Genus Siderocarpos J.K. Small, 1901 accepted as Acacia P. Miller, 1754
- Genus Sigmodostyles Meisner, 1843
- Genus Sigmoidala J. Compton & B.D. Schrire in Compton et al., 2019
- Genus Sigmoidotropis (C.V. Piper) A. Delgado, 2011
- Genus Siliqua Duhamel du Monceau, 1755
- Genus Siliquastrum Duhamel du Monceau, 1755
- Genus Sindora Miquel, 1861
- Genus Sindoropsis J. Léonard, 1957
- Genus Singana Aublet, 1775
- Genus Sinodolichos Verdcourt, 1970
- Genus Skolemora M. Arruda da Camara in H. Koster, 1816
- Genus Smirnovia accepted as Smirnowia Bunge, 1876
- Genus Smirnowia Bunge, 1876
- Genus Smithia W. Aiton, 1789
- Genus Soemmeringia C.F.P. Martius, 1828
- Genus Sohmaea H. Ohashi & K. Ohashi, 2018 †
- Genus Soia Moench, 1794 accepted as Glycine Willdenow, 1802
- Genus Soja Moench, 1794 accepted as Glycine Willdenow, 1802
- Genus Solenotus (Steven) Steven, 1856
- Genus Solori Adanson, 1763 accepted as Derris Loureiro, 1790
- Genus Solulus O. Kuntze, 1891
- Genus Sommerfeldtia H.C.F. Schumacher, 1827
- Genus Sooja accepted as Chamaecrista Moench, 1794
- Genus Sooya accepted as Glycine Willdenow, 1802
- Genus Sophora Linnaeus, 1753
- Genus Sopropis N.L. Britton & J.N. Rose, 1928 accepted as Prosopis Linnaeus, 1767
- Genus Spadostyles Bentham, 1837
- Genus Spaendoncea R.L. Desfontaines, 1796
- Genus Spartianthus Link, 1822
- Genus Spartidium Pomel, 1874 accepted as Calobota Ecklon & Zeyher, 1836
- Genus Spartium Linnaeus, 1753
- Genus Spartium Duhamel du Monceau, 1755
- Genus Spartocytisus Webb & Berthelot, 1846 accepted as Cytisus Desfontaines, 1798
- Genus Spartothamnus P.B. Webb & Berthelot ex K.B. Presl, 1845
- Genus Spathionema Taubert in Engler, 1895
- Genus Spatholobus Hasskarl, 1842
- Genus Spatulima Rafinesque, 1837
- Genus Sphaeridiophorum Desvaux, 1813
- Genus Sphaerolobium J.E. Smith, 1805
- Genus Sphaerophysa A.P. de Candolle, 1825
- Genus Sphenostylis E.H.F. Meyer, 1836
- Genus Sphinctolobium Vogel, 1837 accepted as Lonchocarpus Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Sphinctospermum J.N. Rose, 1906
- Genus Sphinga R.C. Barneby & J.W. Grimes, 1996
- Genus Sphingium E.H.F. Meyer, 1836
- Genus Spiesia Necker ex O. Kuntze, 1891
- Genus Spigelia P. Browne, 1756
- Genus Spirocarpus F.M. Opiz, 1852
- Genus Spiroloba Rafinesque, 1838
- Genus Spirolobium A.D. d'Orbigny, 1839 (?)
- Genus Spirotropis Tulasne, 1844
- Genus Spongiocarpella G.P. Yakovlev & N. Ulzijchutag in G.P. Yakovlev & O.A. Sviazeva, 1987
- Genus Stachychrysum W. Bojer, 1837
- Genus Stachyothyrsus Harms in Engler & Prantl, 1897
- Genus Stahlia Bello, 1881
- Genus Staminodianthus D.B.O.S. Cardoso, H.C. Lima & L.P. Queiroz, 2013
- Genus Stauracanthus Link, 1807
- Genus Steganotropis Lehmann, 1826 accepted as Centrosema (A.P. de Candolle) Bentham, 1837
- Genus Steinbachiella Harms, 1928 accepted as Diphysa N.J. Jacquin, 1760
- Genus Stella Medikus, 1787
- Genus Stemonocoleus Harms, 1905
- Genus Stenodrepanum Harms, 1921
- Genus Stenolobium Bentham, 1837 accepted as Calopogonium Desvaux, 1826
- Genus Stenotropis Hasskarl, 1855
- Genus Sterbeckia Schreber, 1789
- Genus Stirtonanthus B.-E. Van Wyk & A.L. Schutte, 1995
- Genus Stirtonia B.-E. Van Wyk & A.L. Schutte, 1994 accepted as Stirtonanthus B.-E. Van Wyk & A.L. Schutte, 1995
- Genus Stiza E.H.F. Meyer, 1836 accepted as Calobota Ecklon & Zeyher, 1836
- Genus Stizolobium P. Browne, 1756 accepted as Mucuna Adanson, 1763
- Genus Stonesiella M.D. Crisp & P.H. Weston, 1999
- Genus Storckiella B.C. Seemann, 1861
- Genus Stracheya Bentham, 1853 accepted as Hedysarum Linnaeus, 1753
- Genus Streblorrhiza Endlicher, 1833
- Genus Strepsilobus Rafinesque, 1838 accepted as Entada Adanson, 1763
- Genus Streptodesma A. Gray, 1853 accepted as Streptodesmia A. Gray, 1853
- Genus Streptodesmia A. Gray, 1853
- Genus Streptosema K.B. Presl, 1845
- Genus Strombocarpa (Bentham) A. Gray, 1852
- Genus Strongylodon Vogel, 1836
- Genus Strophostyles S. Elliott, 1823
- Genus Stryphnodendron C.F.P. Martius, 1837
- Genus Stuhlmannia Taubert in Engler, 1895
- Genus Stylosanthes O. Swartz, 1788
- Genus Styphnolobium H. Schott ex Endlicher, 1831
- Genus Sulitra Medikus, 1787
- Genus Sulla Medikus, 1787 accepted as Hedysarum Linnaeus, 1753
- Genus Sunhangia H. Ohashi & K. Ohashi in Ohashi et al., 2019
- Genus Sutherlandia R. Brown ex W.T. Aiton, 1812 accepted as Lessertia A.P. de Candolle, 1802
- Genus Swainsona R.A. Salisbury, 1806
- Genus Swainsonia accepted as Swainsona R.A. Salisbury, 1806
- Genus Swantia Alefeld, 1859
- Genus Swartzia Schreber, 1791
- Genus Swartzioxylon F. Delteil-Desneux, 1981 †
- Genus Sweetia K.P.J. Sprengel, 1825
- Genus Sweetia A.P. de Candolle, 1825
- Genus Sweetiopsis R. Chodat & E. Hassler, 1904 accepted as Riedeliella Harms, 1903
- Genus Sylitra E.H.F. Meyer, 1836 accepted as Ptycholobium Harms in Engler, 1915
- Genus Sylosanthes accepted as Stylosanthes O. Swartz, 1788
- Genus Sylvichadsia D.J. Du Puy & J.-N. Labat in J.-N. Labat & D.J. Du Puy, 1998
- Genus Sympetalandra Stapf, 1891
- Genus Syrmatium Vogel, 1836 accepted as Lotus Linnaeus, 1753
- Genus Syspone Grisebach, 1843
- Genus Tabaroa L.P. Queiroz, G.P. Lewis & M.F. Wojciechowski, 2010
- Genus Tachia Persoon, 1805
- Genus Tachigali Aublet, 1775
- Genus Tachigalia accepted as Tachigali Aublet, 1775
- Genus Tadehagi H. Ohashi, 1973
- Genus Taeniocarpum Desvaux, 1826
- Genus Taenioxylon Felix, 1882 †
- Genus Tagera Rafinesque, 1838
- Genus Talbotiella E.G. Baker, 1914
- Genus Tamarindoxylon C.G.K. Ramanujam, 1961 †
- Genus Tamarindus Linnaeus, 1753
- Genus Tara Molina, 1789 accepted as Caesalpinia Linnaeus, 1753
- Genus Taralea Aublet, 1775
- Genus Tateishia H. Ohashi & K. Ohashi in Ohashi et al., 2018
- Genus Tauroceras N.L. Britton & J.N. Rose, 1928 accepted as Acacia P. Miller, 1754
- Genus Taverniera A.P. de Candolle, 1825
- Genus Telestria Rafinesque, 1838
- Genus Telina E.H.F. Meyer, 1836 accepted as Lotononis (A.P. de Candolle) Ecklon & Zeyher, 1836
- Genus Telinaria K.B. Presl, 1845
- Genus Teline Medikus, 1786 accepted as Genista Linnaeus, 1753
- Genus Telis O. Kuntze, 1891
- Genus Templetonia R. Brown ex W.T. Aiton, 1812
- Genus Tephrosia Persoon, 1807
- Genus Teramnus P. Browne, 1756
- Genus Ternatea P. Miller, 1754 accepted as Clitoria Linnaeus, 1753
- Genus Terua Standley & Hermann, 1949 accepted as Lonchocarpus Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Tesota C. Müller, 1857 accepted as Olneya A. Gray, 1854
- Genus Tessmannia Harms, 1910
- Genus Tetraberlinia (Harms) Hauman, 1952
- Genus Tetracheilos J.G.C. Lehmann, 1848
- Genus Tetradapa P. Osbeck, 1757 accepted as Erythrina Linnaeus, 1753
- Genus Tetragonobolus Scopoli, 1772
- Genus Tetragonolobus Scopoli, 1772 accepted as Lotus Linnaeus, 1753
- Genus Tetrapleura Bentham, 1841
- Genus Tetrapleuroxylon W.R. Müller-Stoll & E. Mädel, 1967 †
- Genus Tetrapterocarpon Humbert, 1939
- Genus Tetrodea Rafinesque, 1836
- Genus Teyleria Backer, 1939
- Genus Thailentadopsis A.J.G.H. Kostermans, 1977
- Genus Tharpia N.L. Britton & J.N. Rose, 1930 accepted as Senna P. Miller, 1754
- Genus Theodora Medikus, 1786
- Genus Thermia Nuttall, 1818
- Genus Thermopsis R. Brown ex W.T. Aiton, 1811
- Genus Thinicola J.H. Ross, 2001
- Genus Thium E.G. von Steudel, 1821 accepted as Astragalus Linnaeus, 1753
- Genus Thlaspidium (V.I. Lipsky) M.R. Rassulova, 1978 accepted as Astragalus Linnaeus, 1753
- Genus Thornbera P.A. Rydberg, 1919 accepted as Dalea Linnaeus, 1758
- Genus Thylacanthus Tulasne, 1844 accepted as Julbernardia Pellegrin, 1943
- Genus Thyrsanthus S. Elliott, 1818
- Genus Tibetia (S.I. Ali) H.P. Tsui, 1979
- Genus Ticanto Adanson, 1763
- Genus Tiemassaxylon J. Koeniguer, 1975 †
- Genus Tipuana (Bentham) Bentham, 1860
- Genus Tium Medikus, 1787
- Genus Tobya P.S. Herendeen, D.B.O.S. Cardoso, F. Herrera & S.L. Wing, 2022 †
- Genus Toludendron F. Ehrhart, 1788
- Genus Toluifera Linnaeus, 1753 accepted as Myroxylon Linnaeus f., 1782
- Genus Torresea Freire Allemão, 1862 accepted as Amburana Schwacke & Taubert in Engler & Prantl, 1894
- Genus Toubaouate Aubréville & Pellegrin, 1958 accepted as Didelotia Baillon, 1865
- Genus Touchiroa Aublet, 1775 accepted as Crudia Schreber, 1789
- Genus Toulichiba Adanson, 1763 accepted as Ormosia G. Jackson, 1811
- Genus Tounatea Aublet, 1775 accepted as Swartzia Schreber, 1791
- Genus Tournaya A. Schmitz, 1973 accepted as Gigasiphon Drake del Castillo in Grandidier, 1902
- Genus Toxicopueraria A.N. Egan & B. Pan, 2015
- Genus Toxotropis Turczaninow, 1846
- Genus Trachylobium Hayne, 1827 accepted as Hymenaea Linnaeus, 1753
- Genus Tragacantha P. Miller, 1754 accepted as Astragalus Linnaeus, 1753
- Genus Triaenodendron Endlicher, 1842
- Genus Trichasma Walpers, 1840
- Genus Trichocyamos G.P. Yakovlev, 1972 accepted as Ormosia G. Jackson, 1811
- Genus Trichopodium K.B. Presl, 1845 accepted as Marina Liebmann, 1854
- Genus Tricoilendus Rafinesque, 1837
- Genus Triendilix Rafinesque, 1836
- Genus Trifidacanthus E.D. Merrill, 1917
- Genus Trifillum Medikus, 1787
- Genus Trifoliastrum Moench, 1794
- Genus Trifolium Linnaeus, 1753
- Genus Trigonella Linnaeus, 1753
- Genus Trineuria K.B. Presl, 1845
- Genus Trioptolemea C.F.P. Martius ex Bentham, 1837 accepted as Dalbergia Linnaeus f., 1782
- Genus Tripetalanthus A. Chevalier, 1946 accepted as Plagiosiphon Harms in Engler & Prantl, 1897
- Genus Triphylloides Pontedera ex Moench, 1794
- Genus Triplisomeris (Baillon) Aubréville & Pellegrin, 1958 accepted as Anthonotha Palisot de Beauvois, 1806
- Genus Tripodion Medikus, 1787
- Genus Tripodium accepted as Tripodion Medikus, 1787
- Genus Triptolemea C.F.P. Martius, 1837 accepted as Dalbergia Linnaeus f., 1782
- Genus Triquetra Medikus, 1787
- Genus Trischidium Tulasne, 1843
- Genus Tropitoma Rafinesque, 1837
- Genus Tuamina Alefeld, 1861
- Genus Tubocytisus (A.P. de Candolle) Fourreau, 1868 accepted as Chamaecytisus Link, 1831
- Genus Tuchiroa C.E.O. Kuntze, 1891 accepted as Crudia Schreber, 1789
- Genus Tunatea Kuntze, 1891 accepted as Swartzia Schreber, 1791
- Genus Turpinia Persoon, 1807
- Genus Turukhainia accepted as Trifillum Medikus, 1787
- Genus Turukhania I.T. Vassilczenko, 1979 accepted as Medicago Linnaeus, 1753
- Genus Tylosema (Schweinfurth) Torre & Hillcoat, 1955
- Genus Tzotziloxylon D.K. Pérez-Lara & E. Estrada-Ruiz in Pérez-Lara et al., 2019 †
- Genus Uittienia C.G.G.J. van Steenis, 1948
- Genus Uleanthus Harms, 1905
- Genus Ulex Linnaeus, 1753
- Genus Umari Adanson, 1763
- Genus Umtiza T.R. Sim, 1907
- Genus Ungerites Schleiden in Schmid & Schleiden, 1855 †
- Genus Urania A.P. de Candolle, 1855
- Genus Uraria Desvaux, 1813
- Genus Urariopsis Schindler, 1916 accepted as Uraria Desvaux, 1813
- Genus Uribea Dugand & Romero in Dugand, 1962
- Genus Urodon Turczaninow, 1849
- Genus Ursia I.T. Vassilczenko, 1979 accepted as Trifolium Linnaeus, 1753
- Genus Ursifolium A.B. Doweld, 2003
- Genus Utea J. Saint-Hilaire, 1805 accepted as Macrolobium Schreber, 1789
- Genus Vachellia R. Wight & Arnott, 1834
- Genus Vandasia C. Domin, 1926 accepted as Vandasina S. Rauschert, 1982
- Genus Vandasina S. Rauschert, 1982
- Genus Varennea A.P. de Candolle, 1825 accepted as Eysenhardtia Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Vascoa A.P. de Candolle, 1825 accepted as Rafnia Thunberg, 1800
- Genus Vatairea Aublet, 1775
- Genus Vataireopsis Ducke, 1932
- Genus Vatovaea Chiovenda in Chiarugi, 1951
- Genus Vaughania S. Moore, 1920
- Genus Vavilovia A.A. Fedorov, 1939
- Genus Verdcourtia R. Wilczek, 1966 accepted as Dipogon Liebmann, 1854
- Genus Verdesmum H. Ohashi & K. Ohashi, 2012
- Genus Vermifrux J.B. Gillett, 1966
- Genus Verzinum Rafinesque, 1838
- Genus Vexibia Rafinesque, 1825 accepted as Sophora Linnaeus, 1753
- Genus Vexibiai accepted as Vexibia Rafinesque, 1825
- Genus Vexillaria A. Eaton, 1817
- Genus Vexillaria Bentham, 1837
- Genus Vexillifera Ducke, 1922 accepted as Dussia Krug & Urban ex Taubert in Engler & Prantl, 1892
- Genus Viborgia Moench, 1794 accepted as Chamaecytisus Link, 1831
- Genus Viborquia Ortega, 1798 accepted as Eysenhardtia Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Vicia Linnaeus, 1753
- Genus Vicilla Schur, 1866 accepted as Vicia Linnaeus, 1753
- Genus Vicioides Moench, 1794 accepted as Vicia Linnaeus, 1753
- Genus Vieillardia Montrouzier, 1860
- Genus Vigna G. Savi, 1824
- Genus Vignopsis De Wildeman, 1902 accepted as Psophocarpus Necker ex A.P. de Candolle, 1825
- Genus Viguieranthus J.F. Villiers, 2002
- Genus Villosocallerya L. Duan, J. Compton & B.D. Schrire in Duan et al., 2021
- Genus Vilmonnia accepted as Poitea Ventenat, 1807
- Genus Vilmorinia A.P. de Candolle, 1825 accepted as Poitea Ventenat, 1807
- Genus Viminaria J.E. Smith, 1805
- Genus Virgilia Poiret in Lamarck, 1808
- Genus Voandzeia Du Petit-Thouars, 1806 accepted as Vigna G. Savi, 1824
- Genus Vogelocassia Britton, 1930 accepted as Senna P. Miller, 1754
- Genus Voglera P.G. Gaertner, B. Meyer & Scherbius, 1800
- Genus Vouacapoua Aublet, 1775
- Genus Vouapa Aublet, 1775 accepted as Macrolobium Schreber, 1789
- Genus Vuacapua C.E.O. Kuntze, 1891
- Genus Vuapa Kuntze, 1891 accepted as Macrolobium Schreber, 1789
- Genus Vulneraria P. Miller, 1754
- Genus Vuralia T. Uysal & K. Ertuğrul in T. Uysal, K. Ertuğrul & M. Bozkurt, 2014
- Genus Wagatea Dalzell, 1851 accepted as Moullava Adanson, 1763
- Genus Wajira M. Thulin, 1982
- Genus Waldschmidtia Scopoli, 1777 accepted as Crudia Schreber, 1789
- Genus Wallaceodendron Koorders, 1898
- Genus Walpersia W.H. Harvey in W.H. Harvey & Sonder, 1862 accepted as Phyllota (A.P. de Candolle) Bentham in Endlicher et al., 1837
- Genus Weberbauerella Ulbrich, 1906
- Genus Weinreichia H.G.L. Reichenbach, 1841
- Genus Weizhia G.Y. Li, Z.H. Chen, K.W. Jiang & B. Pan, 2023
- Genus Wenderothia Schlechtendal, 1838 accepted as Canavalia Adanson, 1763
- Genus Westia M. Vahl, 1810 accepted as Berlinia Solander ex J.D. Hooker & Bentham in W.J. Hooker, 1849
- Genus Westonia K.P.J. Sprengel, 1826
- Genus Whitfordia Elmer, 1910 accepted as Callerya Endlicher, 1843
- Genus Whitfordiodendron Elmer, 1910 accepted as Callerya Endlicher, 1843
- Genus Wiborgia O. Kuntze, 1891
- Genus Wiborgia Thunberg, 1800
- Genus Wiborgiella J.S. Boatwright & B.-E. van Wyk, 2009
- Genus Wiggersia Alefeld, 1861
- Genus Willardia J.N. Rose, 1891 accepted as Lonchocarpus Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Wistaria C.P.J. Sprengel, 1826 accepted as Wisteria Nuttall, 1818
- Genus Wisteria Nuttall, 1818
- Genus Wisteriopsis J. Compton & B.D. Schrire in Compton et al., 2019
- Genus Xamacrista Rafinesque, 1838
- Genus Xanthobrychis A.I. Galushko, 1979 accepted as Onobrychis P. Miller, 1754
- Genus Xanthocercis Baillon, 1870
- Genus Xerocarpus Guillemin & Perrottet in Guillemin, Perrottet & A. Richard, 1832 accepted as Rothia Persoon, 1807
- Genus Xerocassia Britton & J.N. Rose, 1930 accepted as Senna P. Miller, 1754
- Genus Xerocladia W.H. Harvey in W.H. Harvey & Sonder, 1862
- Genus Xeroderris Roberty, 1954
- Genus Xerophysa Steven, 1856
- Genus Xerosphaera J. Soják, 1986 accepted as Trifolium Linnaeus, 1753
- Genus Xiphocarpus K.B. Presl, 1830
- Genus Xiphostylis G. Gasparrini, 1853
- Genus Xiphotheca Ecklon & Zeyher, 1836
- Genus Xipotheca accepted as Xiphotheca Ecklon & Zeyher, 1836
- Genus Xylia Bentham, 1842
- Genus Xylolobus O. Kuntze in Post & O. Kuntze, 1903 accepted as Xylia Bentham, 1842
- Genus Xylophacos Rydberg in J.K. Small, 1903 accepted as Astragalus Linnaeus, 1753
- Genus Xylothermia E.L. Greene, 1891 accepted as Pickeringia Nuttall in Torrey & A. Gray, 1840
- Genus Xyphanthus Rafinesque, 1817
- Genus Xypherus Rafinesque, 1819
- Genus Yucaratonia Burkart, 1969 accepted as Gliricidia Kunth in Humboldt, Bonpland & Kunth, 1824
- Genus Zaga Rafinesque, 1837
- Genus Zanthyrsis Rafinesque, 1838
- Genus Zapoteca H.M. Hernández, 1987
- Genus Zenia W.-Y. Chun, 1946
- Genus Zenkerella Taubert in Engler & Prantl, 1894
- Genus Zenkeria Arnott, 1838
- Genus Zenopogon Link, 1831
- Genus Zeydora J. de Loureiro ex B.A. Gomes, 1868 accepted as Pueraria A.P. de Candolle, 1825
- Genus Zichya Hügel, 1837 accepted as Kennedia Ventenat, 1805
- Genus Zigmaloba Rafinesque, 1838
- Genus Zingania A. Chevalier, 1946 accepted as Didelotia Baillon, 1865
- Genus Zittelia Felix, 1882 †
- Genus Zollernia Wied-Neuwied & C.G.D. Nees, 1826
- Genus Zoophthalmum P. Browne, 1756
- Genus Zornia J.F. Gmelin, 1792
- Genus Zuccagnia Cavanilles, 1799
- Genus Zygia P. Browne, 1756
- Genus Zygocarpum M. Thulin & M. Lavin, 2001
- Family Fabales (awaiting allocation)
- Family Leguminosae de Jussieu, 1789 accepted as Fabaceae Lindley, 1836
- Family Mimosaceae R. Brown, 1814 accepted as Fabaceae Lindley, 1836
- Family Papilionaceae Giseke, 1792 accepted as Fabaceae Lindley, 1836
- Family Polygalaceae Hoffmannsegg & Link, 1809
- Family Quillajaceae D. Don, 1831
- Family Surianaceae Arnott, 1834
- Family Xanthophyllaceae Gagnepain ex Reveal & Hoogland, 1990 accepted as Polygalaceae Hoffmannsegg & Link, 1809
- Order Fagales
- Order Francoales accepted as Geraniales
- Order Garryales
- Order Gentianales
- Order Geraniales
- Order Glaucidiales accepted as Ranunculales
- Order Griseliniales accepted as Apiales
- Order Gunnerales
- Order Haemodorales accepted as Commelinales
- Order Haloragales accepted as Saxifragales
- Order Hamamelidales accepted as Saxifragales
- Order Helobiales accepted as Alismatales
- Order Helwingiales accepted as Aquifoliales
- Order Huerteales
- Order Hydatellales accepted as Nymphaeales
- Order Hydrangeales accepted as Cornales
- Order Hydrastidales accepted as Ranunculales
- Order Hydrocharitales accepted as Alismatales
- Order Hydropeltidales accepted as Nymphaeales
- Order Hypericales accepted as Malpighiales
- Order Hypoxidales accepted as Asparagales
- Order Icacinales
- Order Illiciales accepted as Austrobaileyales
- Order Iridales accepted as Asparagales
- Order Juglandales accepted as Fagales
- Order Juncaginales accepted as Alismatales
- Order Juncales accepted as Poales
- Order Lamiales
- Order Laurales
- Order Lecythidales accepted as Ericales
- Order Leitneriales accepted as Sapindales
- Order Liliales
- Order Linales accepted as Malpighiales
- Order Magnoliales
- Order Magnoliopsida (awaiting allocation)
- Order Malpighiales
- Order Malvales
- Order Melanthiales accepted as Liliales
- Order Metteniusales
- Order Myricales accepted as Fagales
- Order Myrsinales accepted as Ericales
- Order Myrtales
- Order Najadales accepted as Alismatales
- Order Nepenthales accepted as Caryophyllales
- Order Nymphaeales
- Order Ochnales accepted as Malpighiales
- Order Oleales accepted as Lamiales
- Order Orchidales accepted as Asparagales
- Order Oxalidales
- Order Pandanales
- Order Papaverales accepted as Ranunculales
- Order Paracryphiales
- Order Parnassiales accepted as Celastrales
- Order Petrosaviales
- Order Picramniales
- Order Piperales
- Order Plantaginales accepted as Lamiales
- Order Plumbaginales accepted as Caryophyllales
- Order Poales
- Order Podostemales accepted as Malpighiales
- Order Polygalales accepted as Fabales
- Order Polygonales accepted as Caryophyllales
- Order Primulales accepted as Ericales
- Order Proteales
- Order Rafflesiales accepted as Malpighiales
- Order Ranunculales
- Order Restionales accepted as Poales
- Order Rhamnales accepted as Rosales
- Order Rhizophorales accepted as Malpighiales
- Order Roridulales accepted as Ericales
- Order Rosales
- Order Rubiales accepted as Gentianales
- Order Rutales accepted as Sapindales
- Order Sabiales accepted as Proteales
- Order Salicales accepted as Malpighiales
- Order Santalales
- Order Sapindales
- Order Sarbaicarpales †
- Order Saxifragales
- Order Scrophulariales accepted as Lamiales
- Order Smilacales accepted as Liliales
- Order Solanales
- Order Stemonales accepted as Pandanales
- Order Tamaricales accepted as Caryophyllales
- Order Tecophilaeales accepted as Asparagales
- Order Theales accepted as Ericales
- Order Thymelaeales accepted as Malvales
- Order Toricelliales accepted as Cornales
- Order Trilliales accepted as Liliales
- Order Triuridales accepted as Pandanales
- Order Trochodendrales
- Order Typhales accepted as Poales
- Order Urticales accepted as Rosales
- Order Vahliales
- Order Viburnales accepted as Dipsacales
- Order Violales accepted as Malpighiales
- Order Vitales
- Order Xanthorrhoeales accepted as Asparagales
- Order Zingiberales
- Order Zygophyllales
- Family Archaefructaceae G. Sun, Q. Ji, D.L. Dilcher, S. Zheng, K.C. Nixon & X. Wang, 2002 †
- Family Sinoherbaceae Z.-J. Liu & X. Wang in Liu et al., 2021 †
- Genus Aachenosaurus Smets, 1887 † accepted as Aachenoxylon M. Hovelacque, 1889 †
- Genus Aachenoxylon M. Hovelacque, 1889 †
- Genus Antholithes A.T. Brongniart, 1822 †
- Genus Archaebuda L.-J. Chen & X. Wang, 2022 †
- Genus Ascarinophyllum J. Čepičková & J. Kvaček, 2022 †
- Genus Atrichodendron Gagnepain, 1950
- Genus Barykovia M.G. Moiseeva, 2012 †
- Genus Bergacarpon J. Marmi, B. Gomez, S. Villalba-Breva & C. Martín-Closas, 2012 †
- Genus Bilitalium F. Buchanan-Hamilton, 1807
- Genus Caliciflora E.M. Friis, K.R. Pedersen & P.R. Crane, 2016 †
- Genus Carpestella M. von Balthazar, K.R. Pedersen, P.R. Crane & E.M. Friis, 2008 †
- Genus Catanthus E.M. Friis, P.R. Crane & K.R. Pedersen, 2020 †
- Genus Cavilignum C. Siegert & E.J. Hermsen, 2020 †
- Genus Chainandra G.O. Poinar Jr. & K.L. Chambers, 2020 †
- Genus Covidifructus Z. Heřmanová, J. Čepičková, J. Kvaček, M. von Balthazar & J. Schönenberger, 2022 †
- Genus Cratolirion C. Coifard, N. Kardjilov & M.E.C. Bernardes-de-Oliveira in Coifard et al., 2019 †
- Genus Culmites A.T. Brongniart, 1822 †
- Genus Cyathitepala G.O. Poinar Jr. & K.L. Chambers, 2020 †
- Genus Dilcherifructus X. Wang, 2021 †
- Genus Dillhoffia S.R. Manchester & K.B. Pigg, 2008 †
- Genus Dinganthus X.-D. Liu, J.B. Diez, Y. Fan, Z.-J. Liu & X. Wang, 2020 †
- Genus Elasmostemon E.M. Friis, P.R. Crane, K.R. Pedersen, M.M. Mendes & J. Kvaček, 2022 †
- Genus Endressistemon E.M. Friis, P.R. Crane, K.R. Pedersen, M.M. Mendes & J. Kvaček, 2022 †
- Genus Exogenites A.T. Brongniart, 1822 †
- Genus Fairlingtonia N.A. Jud, 2015 †
- Genus Florigerminis D.-F. Cui, Y. Hou, P. Yin & X. Wang, 2022 †
- Genus Fouldenia J.M. Bannister, D.E. Lee & J.I. Raine 2005 †
- Genus Friisifructus K.K. Tang, S.Y. Smith & B.A. Atkinson, 2023 †
- Genus Gansufructus B. Du in Du et al., 2021 †
- Genus Gansupeltata G.-T. Wu, W.-X. Ren, L. Han, H.-S. Wang, Y.-F. Hua & B.-N. Sun, 2022 †
- Genus Harmsia E. McIver & J.F. Basinger, 1993 † accepted as Mciveriella A.B. Doweld, 2016 †
- Genus Herbifolia A. Frolov & I. Enushchenko, 2022 †
- Genus Honeytheca I.B. Huegele & S.R. Manchester, 2022 †
- Genus Ibericarpus E.M. Friis, P.R. Crane, K.R. Pedersen, M.M. Mendes & J. Kvaček, 2022 †
- Genus Kachaikenia R. Cunéo & M.A. Gandolfo, 2005 †
- Genus Kenilanthus E.M. Friis, K.R. Pedersen & P.R. Crane, 2016 †
- Genus Lingyuananthus X. Wang, 2022 †
- Genus Mciveriella A.B. Doweld, 2016 †
- Genus Menatanthus D. Uhl, K.N. Paudayal & H. El Atfy in Uhl et al., 2020 †
- Genus Nicolia Unger in Endlicher, 1842 †
- Genus Nitaspermum E.M. Friis, P.R. Crane & K.R. Pedersen, 2018 †
- Genus Othniophyton Manchester, Judd & Correa-Narvaez, 2024 †
- Genus Paisia E.M. Friis, M.M. Mendes & K.R. Pedersen, 2018 †
- Genus Phantophlebia G.O. Poinar, Jr. & K.L. Chambers, 2020 †
- Genus Sherwinoxylon A. Boura & G. Saulnier in Boura et al., 2019 †
- Genus Singpuria D. Ramteke, S.R. Manchester & V.D. Nagrale in Ramteke et al., 2020 †
- Genus Strombothelya G.O. Poinar, Jr. & K.L. Chambers, 2019 †
- Genus Tanispermum E.M. Friis, P.R. Crane & K.R. Pedersen, 2018 †
- Genus Thorphyllum R. Cunéo & M.A. Gandolfo, 2005 †
- Genus Tolmania N.L. Edmonds, R.A. Stockey & G.W. Rothwell, 2022 †
- Genus Ubiquitoxylon E.A. Wheeler in Wheeler et al., 2019 †
- Genus Valvidistemon E.M. Friis, P.R. Crane, K.R. Pedersen, M.M. Mendes & J. Kvaček, 2022 †
- Genus Wingia H. Wang & D.L. Dilcher, 2018 †
- Genus Wireroadia X. Zhang, Y. Wang, D.L. Dilcher & S.R. Manchester, 2020 †
- Genus Zlatkovia G.W. Rothwell & R.A. Stockey, 2022 †
- Genus Comoxia Jud, Bradley, Zahnd, Rothwell & Stockey, 2024 †
- Genus Compitoxylon Gentis, De Franceschi & Boura, 2023 †
- Genus Felinanthus Heřmanová, Von Balthazar, Kvaček & Schönenberger, 2024 †
- Genus Nothophylica Beurel, Bachelier, Schmidt & Sadowski, 2024 †
- Genus Pteroheterochrosperma M.A. Smith, D.E. Greenwalt & S.R. Manchester, 2023 †
- Genus Quadrasubulaflora M.A. Smith, D.E. Greenwalt & S.R. Manchester, 2023 †
- Genus Racheliflora E.M. Friis, P.R. Crane & K.R. Pedersen, 2023 †
- Genus Tortorellixylon C.F. Rombola, R.R. Pujana, D.P. Ruiz & E.S. Bellosi, 2023 †
- Genus Xilinia X. Wang, J.B. Diez, M. Pole & M. García-Ávila, 2023 †
- Superclass Gymnospermae
- Genus Alasemenia Wang, Yang, Liu, Zhou, Xu, Qin & Huang, 2024 †
- Genus Bevhalstia C.R. Hill, 1996 †
- Genus Carpolithus E.T. Artis, 1825 †
- Genus Combina A.A. Santos & X. Wang, 2022 †
- Genus Juraherba G. Han, Z. Liu, X. Liu, L. Mao, F.M.B. Jacques & X. Wang, 2016 †
- Genus Muricosperma L.J. Seyfullah & J. Hilton in Seyfullah et al., 2010 †
- Genus Nothodichocarpum G. Han, Z. Liu & X. Wang, 2017 †
- Genus Problematospermum A.I. Turutanova-Ketova in J.A. Orlov, 1963 ex Krassilov, 1973 †
- Genus Qingganninginfructus X. Wang & Sun in Han et al., 2023 †
- Genus Renbernia E.M. Friis, P.R. Crane & K.R. Pedersen, 2022 †
- Genus Shaolinia Wang & Chen, 2024 †
- Genus Xenofructus Fu, Sun, Zheng & Wang, 2024 †
- Genus Xingxueanthus X. Wang & S. Wang, 2010 †
- Genus Yiduxylon D.M. Wang & L. Liu, 2015 †
- Genus Yuhania Z.-J. Liu & X. Wang, 2016 †
- Class Progymnospermopsida †
- Class Pteridophyta/Pteridospermophyta (unclassified foliage) †
- Class Rhyniopsida †
- Class Trimerophytopsida †
- Class Zosterophyllopsida †
- Order Stenokoleales †
- Genus Ahnetia A.-L. Decombeix & J. Galtier, 2017 †
- Genus Aysenoxylon R.R. Pujana, J.E. Bostelmann, R.A. Ugalde, M.P. Riquelme & T. Torres, 2023 †
- Genus Dameria A.-L. Decombeix, B. Meyer-Berthaud, J. Galtier, J.A. Talent & R. Mawson, 2011 †
- Genus Dibracophyton S.-G. Hao, J.-Z. Xue, X. Zhu & D.-M. Wang, 2012 †
- Genus Douaphyton H.-H. Xu, Y. Wang, P. Tang & Y. Wang, 2017 †
- Genus Endogenites A.T. Brongniart, 1822 †
- Genus Flabellopteris R.W. Gess & C. Prestianni, 2021 †
- Genus Franhueberia L.A. Hoffman & A.M.F. Tomescu, 2013 †
- Genus Jowingera M.A. Bickner & A.M.F. Tomescu, 2019 †
- Genus Kenrickia S. Toledo & A.M.F. Tomescu in Toledo et al., 2021 †
- Genus Leptocentroxyla M.A. Bickner & A.M.F. Tomescu, 2019 †
- Genus Macrotaeniopteris W.P. Schimper, 1869 †
- Genus Mosacaulis R.W.J.M. van der Ham & J.H.A. van Konijnenburg-van Cittert in van der Ham et al., 2011 †
- Genus Nebuloxyla M.A.K. Lalica & A.M.F. Tomescu, 2023 †
- Genus Ninsaria A.-L. Decombeix, J. Galtier, S. McLoughlin & B. Meyer-Berthaud in Decombeix et al., 2019 †
- Genus Oleandridium W.P. Schimper, 1869 †
- Genus Perplexa K.C. Pfeiler & A.M.F. Tomescu, 2023 †
- Genus Petrosjania S.M. Snigirevsky & A.P. Lyubarova, 2023 †
- Genus Planatophyton P. Gerrienne, B. Meyer-Berthaud, N. Yang, P. Steemans & C.-S. Li, 2014 †
- Genus Poacites Schlotheim ex Ballenstedt, 1822 †
- Genus Sporangites J.W. Dawson, 1863 †
- Genus Stenoloboxyla M.A. Bickner & A.M.F. Tomescu, 2019 †
- Genus Taeniopteris A.T. Brongniart, 1828 †
- Genus Tainioxyla M.A. Bickner & A.M.F. Tomescu, 2019 †
- Genus Thursophyton A.G. Nathorst, 1914-1915 †
- Genus Thursophyton A.G. Nathorst ex E.A.N. Arber, 1921 † accepted as Thursophyton A.G. Nathorst, 1914-1915 †
- Genus Tichavekia J. Pšenička, J. Sakala & P. Kraft in Kraft et al., 2019 †
- Genus Tregiovia G. Forte & E. Kustatscher, 2023 †
- Genus Wilhowia P.G. Gensel, 2022 †
- Genus Xadzigacalix A.A. Klymiuk, G.W. Rothwell & R.A. Stockey, 2022 †
- Genus Xinhangia J.-N. Yang & D.-M. Wang, 2022 †
- Genus Yabeiella S. Ôishi, 1931 †
- Phylum Vendophyta † accepted as Algae incertae sedis
- Class Nematophyceae † accepted as Nematophyta †
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
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