Wolffia arrhiza
Wolffia arrhiza
Wolffia arrhiza (L.) Horkel ex Wimm.
Engl.: spotless watermeal, rootless duckweed.
Deu.: wurzellose Zwergwasserlinse.
Sven.: dvärgandmat.
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.