Penstemon gracilis
Penstemon gracilis
Penstemon gracilis Nutt.
Engl.: lilac penstemon, slender penstemon.
Sven.: spädpenstemon.
Bot. syn.: Penstemon glaucus Graham.
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.