Brassica rapa ssp. silvestris:
Brassica rapa ssp. silvestris:
Brassica rapa ssp. silvestris (Lam.) Janch., Brassicaceae: See Brassica rapa L. ssp. campestris (L.) Clapham.
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.