Canada's Plant Hardiness Site

Asteraceae daisy family
Helianthus petiolaris subsp. petiolaris Nutt.
En: prairie sunflower, plains sunflower, Kansas sunflower, petioled sunflower;
Fr: helianthe des prairies

• [=Helianthus annuus L. subsp. couplandii (B.Boivin) Á.Löve & D.Löve]
• [=Helianthus annuus L. subsp. petiolaris (Nutt.) Anashch.]
• [=Helianthus couplandii B.Boivin]