Fig. 151. Petals of Cercis canadensis
a, keel petal; b, side petals; c, banner petal.
This image is from Red Bud in the Drugs and Medicines of North America.
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.