Polymnia
Polymnia
Polymnia L.
Engl.: polymnia.
Polymnia canadensis
Polymnia canadensis L.
Engl.: whiteflower leafcup.
Polymnia uvedalia:
Polymnia uvedalia (L.) L., Asteraceae: See Smallanthus uvedalius (L.) Mack. ex Small.
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.