Grindelia robusta; transverse section through upper surface of leaf, 250 diam.
Scaly trichoma, a from above, b section, 400 diam.
This image is from Gleanings in Materia Medica in the American Journal of Pharmacy, 1883.
Henriette's Herbal Homepage
Welcome to the bark side.
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.