Helianthus petiolaris
Helianthus petiolaris
Helianthus petiolaris Nutt.
Engl.: prairie sunflower, Kansas sunflower, lesser sunflower, petioled sunflower, plains sunflower.
A herbal distance course
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.