Click here for information about Isatis.
Click here for photos of Isatis tinctoria.
Gamla texter: Svensk Botanik, band 1, 1815: bilder.
A herbal distance course
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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.