Betonica. Betonica officinalis, L. Wood Betony.—A perennial European labiate herb, feebly aromatic and astringent. Its root has been considered emetic and purgative.
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.