• Chara Linnaeus, 1753 [Family: Characeae]
• Chara Staudinger in Romanoff, 1892 [Family: Noctuidae]
• Chara abnormiformis J. Vilhelm, 1928 accepted as Chara altaica A. Braun, 1882
• Chara acanthopitys (A. Braun) R.D. Wood, 1965
• Chara aculeolata F.T. Kützing, 1832
• Chara africana (A. Braun) R.D. Wood, 1965 accepted as Chara hydropitys H. Reichenbach, 1829
• Chara africana A. Braun, 1835 accepted as Nitella africana (A. Braun) Kützing, 1849
• Chara agardhiana J. Wallman, 1853 accepted as Chara baltica A. Bruzelius, 1824
• Chara ajensis Krassavina
• Chara albaniensis (R.D. Wood) J.C. van Raam, 2010
• Chara albosignata Staudinger, 1892
• Chara alopecuroidea (Delile ex A. Braun) J. Wallman, 1853 accepted as Lamprothamnium papulosum (K. Wallroth) J. Groves, 1916
• Chara alopecuroidea A.R. Delile ex A. Braun, 1847
• Chara alopecuroides J. Wallman, 1853
• Chara altaica A. Braun, 1882
• Chara amplexa J. Groves & E.L. Stephens, 1933
• Chara andina (A. Braun) R.D. Wood, 1965
• Chara andreanszkyi Rásky
• Chara angarica L.K. Krassavina, 1978
• Chara angolensis A. Braun, 1867
• Chara annulata (Liljeblad) J. Wallman, 1853 accepted as Chara virgata Kützing, 1834
• Chara arcuatofolia J. Vilhelm, 1928
• Chara armata Meyen ex Kützing, 1857
• Chara arnhemensis (R.D. Wood) R.D. Wood, 1975 accepted as Chara acanthopitys (A. Braun) R.D. Wood, 1965
• Chara arrudensis E.J. Mendes, 1947 accepted as Chara contraria A. Braun ex Kützing, 1845
• Chara aspera C.L. Willdenow, 1809
• Chara asperula Thuret ex F. Hy, 1913 accepted as Chara aspera C.L. Willdenow, 1809
• Chara atrovirens R.T. Lowe, 1838 accepted as Chara vulgaris Linnaeus, 1753
• Chara australis R. Brown, 1810 accepted as Chara corallina Klein ex C.L. Willdenow, 1805
• Chara baltica A. Bruzelius, 1824
• Chara barbata F. Meyen, 1827 accepted as Lychnothamnus barbatus (L. Meyen) H. von Leonhardi, 1863
• Chara barbieri G. Balsamo-Crivelli, 1840 accepted as Nitella mucronata (A. Braun) F. Miquel, 1840
• Chara batrachioides F. Müller accepted as Chara fibrosa C. Agardh ex A. Bruzelius, 1824
• Chara batrachosperma H.G.L. Reichenbach, 1830 accepted as Nitella confervacea (Brébisson) A. Braun ex Leonhardi, 1863
• Chara batrachosperma J.L. Thuillier, 1799 accepted as Chara vulgaris Linnaeus, 1753
• Chara baueri A. Braun, 1847
• Chara behriana A. Braun, 1852
• Chara bellangeri Braun
• Chara benthamii A. Braun, 1867 accepted as Chara fibrosa C. Agardh ex A. Bruzelius, 1824
• Chara berteroi (A. Braun ex Kützing) W. Nylander, 1863 accepted as Chara indica C.G. Bertero ex C. Spengel, 1827
• Chara bharadwajae Y.S.R.K. Sarma & M. Khan, 1967
• Chara biharensis S. Mukherjee & M.N. Noor, 1985
• Chara bimaculata Staudinger, 1892
• Chara bisulcata Peck & Reker
• Chara bleicheri Saporta
• Chara bohemica (J. Vilhelm) J. Vilhelm, 1923 accepted as Chara aculeolata F.T. Kützing, 1832
• Chara borrei C.C. Babington, 1850 accepted as Tolypella prolifera (Ziz ex A. Braun) Leonhardi, 1863
• Chara boveana A. Braun, 1867 accepted as Chara vulgaris Linnaeus, 1753
• Chara brachypus A. Braun, 1849 accepted as Chara setosa Klein ex C.L. Willdenow, 1805
• Chara brachystephana F.S. Han & H.C. Liu, 1963
• Chara braunii C.C. Gmelin, 1826
• Chara brevibracteata F.S. Han, 1991
• Chara brevicoronula W.Q. Chen,G.X. Wang & F.S. Han, 1990
• Chara brewsterensis J. Groves
• Chara brianica Stapf
• Chara brionica Stapf, 1885
• Chara brittonii T.F. Allen ex.C.B. Robinson, 1906
• Chara buckellii G.O. Allen, 1951
• Chara bulbillifera (Carl de Donterberg) A. García, 1990
• Chara burmanica B.P. Pal, 1932 accepted as Chara fibrosa C. Agardh ex A. Bruzelius, 1824
• Chara calveraensis (R.D. Wood) Y.J. Ling et al., 1989 accepted as Chara calveraënsis (R.D. Wood) R.D. Wood, 1965
• Chara calveraënsis (R.D. Wood) R.D. Wood, 1965
• Chara canescens J.L.A. Loiseleur-Deslongschamps, 1810
• Chara capensis E. Meyer ex Kützing, 1857
• Chara capillacea C.J. Hartman, 1846 accepted as Chara globularis J.L. Thuiller, 1799
• Chara capillacea J.L. Thuillier, 1799 accepted as Chara globularis J.L. Thuiller, 1799
• Chara capillaris A.J. Krocker, 1814 accepted as Nitella capillaris (A.J. Krocker) J. Groves & G.R. Bullock-Webster, 1920
• Chara capitata C.C. Nees von Esenbeck, 1818 accepted as Nitella capillaris (A.J. Krocker) J. Groves & G.R. Bullock-Webster, 1920
• Chara capitellata Elliott ex A. Braun nom. nud., 1844 accepted as Nitella capitellata A. Braun, 1882
• Chara carinata Stache
• Chara carmenensis T.F. Allen, 1894
• Chara ceratophylla K.F.G. Wallroth, 1815 accepted as Chara tomentosa Linnaeus, 1753
• Chara cespitosa Wallman
• Chara chamaepitys Braun
• Chara chidamuensis S. Wang, 1961
• Chara chilensis Kützing, 1857
• Chara chrysospora J. Groves & L. Stephens, 1926
• Chara cienegaensis Tindall
• Chara cingulata Stache
• Chara circinnata Waltman
• Chara clavata Bertero
• Chara coarctata Wallman
• Chara colata Reid & Groves
• Chara collabens C. Agardh, 1824 accepted as Chara vulgaris Linnaeus, 1753
• Chara columnaria S. Wang, 1961
• Chara commersonii A. Braun, 1835 accepted as Chara diaphana (F.J.F. Meyen) R.D. Wood, 1965
• Chara compressa C.S. Kunth, 1815 accepted as Chara zeylanica C.L. Willdenow, 1805
• Chara concinna M.C. Durieu & E. Cosson, 1859 accepted as Chara connivens P. Salzmann ex A. Braun, 1835
• Chara condensata J. Wallman, 1853 accepted as Chara canescens J.L.A. Loiseleur-Deslongschamps, 1810
• Chara condensata Ruprecht, 1845 accepted as Nitella hyalina (De Candolle) C. Agardh, 1824
• Chara congesta R. Brown, 1810 accepted as Nitella congesta (R. Brown) A. Braun, 1849
• Chara conimbrigensis A. Gonçalves da Cunha, 1935 accepted as Chara gymnophylla A. Braun, 1835
• Chara conjugens A. Braun, 1858 accepted as Chara foliolosa H.L. Mühlenberg ex C.L. Willdenow, 1805
• Chara connivens P. Salzmann ex A. Braun, 1835
• Chara conniventi-fragilis F. Hy, 1913 accepted as Chara globularis J.L. Thuiller, 1799
• Chara contraria A. Braun ex Kützing, 1845
• Chara corallina Klein ex C.L. Willdenow, 1805
• Chara corfuensis J. Groves, 1937
• Chara coromandelina (A. Braun) R.D. Wood, 1965 accepted as Chara braunii C.C. Gmelin, 1826
• Chara coronata J.B. Ziz ex G.W. Bischoff, 1828 accepted as Chara braunii C.C. Gmelin, 1826