Common name(s): Downy sunflower, Ashy sunflower
Category: Genus Helianthus
Helianthus annuus
Common name(s): Common sunflower
Helianthus angustifolius
Common name(s): Narrow-leaved sunflower
Helianthus divaricatus
Common name(s): Woodland sunflower
Helianthus tuberosus
Common name(s): Jerusalem artichoke
Helianthus decapetalus
Common name(s): Thinleaf sunflower
Helianthus laetiflorus
Common name(s): Cheerful sunflower