Osmunda claytoniana
Osmunda claytoniana
Osmunda claytoniana L.
Engl.: interrupted fern.
Deu.: Teufelsfarn, Dunkler Münzrollenfarn, Kronenfarn.
Jap.: oni-zenmai.
Bot. syn.: Osmunda interrupta Michx.
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.