| | Species and varieties
Helianthus angustifolius (Swamp Sunflower)
Helianthus annuus (Sunflower)
Helianthus atrorubens (Dark Eye Sunflower, Purpledisk Sunflower)
Helianthus decapetalus (Thinleaf Sunflower)
Helianthus maximiliani (Maximillian Sunflower)
Helianthus multiflorus
Helianthus salicifolius (Willowleaf Sunflower)
Helianthus tuberosus (Jerusalem Artichoke, Girasole)
Helianthus angustifolius var. planifolius synonym of Helianthus angustifolius (Swamp Sunflower)
Helianthus aridus synonym of Helianthus annuus (Sunflower)
Helianthus atrorubens var. alsodes synonym of Helianthus atrorubens (Dark Eye Sunflower, Purpledisk Sunflower)
Helianthus dalyi synonym of Helianthus maximiliani (Maximillian Sunflower)
Helianthus filiformis synonym of Helianthus salicifolius (Willowleaf Sunflower)
Helianthus filiformis synonym of Helianthus salicifolius (Willowleaf Sunflower)
Helianthus lenticularis synonym of Helianthus annuus (Sunflower)
Helianthus orgyalis synonym of Helianthus salicifolius (Willowleaf Sunflower)
Helianthus orgyalis synonym of Helianthus salicifolius (Willowleaf Sunflower)
Helianthus scrophulariifolius synonym of Helianthus decapetalus (Thinleaf Sunflower)
Helianthus tomentosus synonym of Helianthus tuberosus (Jerusalem Artichoke, Girasole)
Helianthus tracheliifolius synonym of Helianthus decapetalus (Thinleaf Sunflower)
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