Canada's Plant Hardiness Site

Asteraceae daisy family
Helianthus pauciflorus subsp. pauciflorus Nutt.
En: stiff sunflower, fewleaf sunflower, prairie sunflower;
Fr: helianthe raide, helianthe pauciflore

• [=Harpalium rigidum Cass, nom. inval.]
• [=Harpalium rigidum (Desf.) Cass. ex DC.]
• [=Helianthus laetiflorus Pers. forma rigidus (Desf.) B.Boivin]
• [=Helianthus laetiflorus Pers. var. rigidus (Desf.) Fernald]
• [=Helianthus rigidus Desf. - basionym]