Helianthus

Helianthus verticillatus

Helianthus subtuberosus

Helianthus neglectus

Helianthus × brevifolius

Helianthus atrorubens

Dark-eyed sunflower

Helianthus petiolaris subsp. fallax

Helianthus smithiorum

Helianthus laetiflorus

Helianthus strumosus

Helianthus × luxurians

Helianthus mollis

Ashy sunflower

Helianthus nuttallii subsp. rydbergii

Helianthus nuttallii subsp. nuttallii

Helianthus californicus

California sunflower

Helianthus petiolaris subsp. petiolaris

Helianthus grosseserratus

Helianthus occidentalis subsp. occidentalis

Helianthus occidentalis subsp. plantagineus

Helianthus dissectifolius

Helianthus paradoxus subsp. paradoxus