Isopyrum. Isopyrum thalictroides L. (Fam. Ranunculaceae.)—F. A. Harsten believes he has found two alkaloids, isopyrine and pseudoisopyrine, in the root of this plant, which grows in the forests of middle and southern Europe. (A. J. P., xliv, 453.)
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.