• Helianthus Linnaeus, 1753
• Helianthus agrestis Pollard
• Helianthus agustifolius Linnaeus
• Helianthus alexidis Boivin
• Helianthus alienus E.E. Wats. accepted as Helianthus giganteus Linnaeus
• Helianthus ambiguus (Gray) Britt.
• Helianthus angustifolius Linnaeus
• Helianthus annuus Linnaeus
• Helianthus anomalus Blake
• Helianthus argophyllis Torrey & Gray
• Helianthus argophyllus Torr. & Gray
• Helianthus aridus Rydb. accepted as Helianthus annuus Linnaeus
• Helianthus aristatus Ell. accepted as Verbesina aristata (Ell.) Heller
• Helianthus arizonensis R.C. Jackson
• Helianthus arizonicus R.C. Jacks.
• Helianthus atrorubens Linnaeus
• Helianthus bolanderi Gray
• Helianthus borealis E.E. Wats. accepted as Helianthus giganteus Linnaeus
• Helianthus brevifolius E.E. Wats.
• Helianthus californicus DC.
• Helianthus canescens (Gray) S. Wats. accepted as Helianthus niveus (Benth.) Brandeg.
• Helianthus canus (Britt.) Woot. & Standl. accepted as Helianthus niveus (Benth.) Brandeg.
• Helianthus carnosus Small
• Helianthus ciliaris DC.
• Helianthus cinereus Torr. & Gray
• Helianthus couplandii Boivin
• Helianthus crenatus R.C. Jackson accepted as Helianthus laciniatus Gray
• Helianthus cucumerifolius Torr. & Gray accepted as Helianthus debilis Nuttall, 1841
• Helianthus cusickii Gray
• Helianthus dalyi Britt. accepted as Helianthus maximiliani Schrad.
• Helianthus debilis Nuttall, 1841
• Helianthus decapetalis Linnaeus
• Helianthus decapetalus Linnaeus
• Helianthus dentatus Cav. accepted as Viguiera dentata (Cav.) Spreng.
• Helianthus deserticola Heiser accepted as Helianthus anomalus Blake
• Helianthus divaricatus Linnaeus
• Helianthus divariserratus R.W. Long
• Helianthus doronicoides Lam.
• Helianthus dowellianus M.A. Curtis accepted as Helianthus occidentalis Riddell
• Helianthus eggertii Small
• Helianthus exilis Gray accepted as Helianthus bolanderi Gray
• Helianthus fascicularis Greene accepted as Helianthus nuttallii Torr. & Gray
• Helianthus filiformis Small accepted as Helianthus salicifolius A. Dietr.
• Helianthus floridanus Gray ex Chapman
• Helianthus giganteus Linnaeus
• Helianthus glaucophyllus D.M. Sm.
• Helianthus glaucus Small
• Helianthus gracilentus Gray
• Helianthus grosseserratus Martens
• Helianthus heiseri R.C. Jackson accepted as Helianthus laciniatus Gray
• Helianthus heterophyllus Nutt.
• Helianthus hirsutus Raf.
• Helianthus instabilis E.E. Wats. accepted as Helianthus grosseserratus Martens
• Helianthus intermedius R.W. Long
• Helianthus kellermanii Britt.
• Helianthus laciniatus Gray
• Helianthus laetiflorus Pers.
• Helianthus laevigatus Torr. & Gray
• Helianthus laevis Linnaeus accepted as Bidens laevis (L.) B.S.P.
• Helianthus lenticularis Dougl. ex Lindl. accepted as Helianthus annuus Linnaeus
• Helianthus longifolius Pursh
• Helianthus ludens Shinners accepted as Viguiera phenax Blake
• Helianthus luxurians E.E. Wats.
• Helianthus maximiliani Schrad.
• Helianthus microcephalus Torr. & Gray
• Helianthus mollis Lam.
• Helianthus montanus E.E. Wats. accepted as Helianthus strumosus Linnaeus
• Helianthus multiflorus Linnaeus
• Helianthus neglectus Heiser
• Helianthus niveus (Benth.) Brandeg.
• Helianthus nuttallii Torr. & Gray
• Helianthus occidentalis Riddell
• Helianthus orgyalis DC. accepted as Helianthus salicifolius A. Dietr.
• Helianthus orgyaloides Cockerell
• Helianthus paradoxus Heiser
• Helianthus parishii Gray accepted as Helianthus nuttallii Torr. & Gray
• Helianthus pauciflorus Nutt.
• Helianthus petiolaris Nutt.
• Helianthus pilosus Tausch accepted as Helianthus doronicoides Lam.
• Helianthus porteri (Gray) Pruski
• Helianthus praecox Engelm. & Gray
• Helianthus praetermissus E.E. Wats.
• Helianthus pumilus Nutt.
• Helianthus quinquenervis Hook. accepted as Helianthella quinquenervis (Hook.) Gray
• Helianthus radula (Pursh) Torr. & Gray
• Helianthus reindutus (Steele) E.E. Wats. accepted as Helianthus laevigatus Torr. & Gray
• Helianthus resinosus Small
• Helianthus rigidus (Cass.) Desf. accepted as Helianthus pauciflorus Nutt.
• Helianthus rydbergii Britt. accepted as Helianthus nuttallii Torr. & Gray
• Helianthus salicifolius A. Dietr.
• Helianthus saxicola Small accepted as Helianthus strumosus Linnaeus
• Helianthus scaberrimus Ell. accepted as Helianthus laetiflorus Pers.
• Helianthus schweinitzii Torr. & Gray
• Helianthus scrophulariifolius Britt. accepted as Helianthus decapetalus Linnaeus
• Helianthus silphioides Nutt.
• Helianthus simulans E.E. Wats.
• Helianthus smithii Heiser
• Helianthus stenophyllus (Torr. & Gray) E.E. Wats. accepted as Helianthus hirsutus Raf.
• Helianthus strumosus Linnaeus
• Helianthus subrhomboideus Rydb. accepted as Helianthus pauciflorus Nutt.