Betonica officinalis 【医】 欧水苏
Betony \Bet"o*ny\, n.; pl. {Betonies}. [OE. betony, betany, F.
betoine, fr. L. betonica, vettonica.] (Bot.)
A plant of the genus {Betonica} (Linn.).
Note: The purple or wood betony ({Betonica officinalis},
Linn.) is common in Europe, being formerly used in
medicine, and (according to Loudon) in dyeing wool a
yellow color.