a Eurasian plant of the mint family, which bears spikes of showy purple flowers 石蚕
Stachys officinalis, family Labiatae 拉丁名Stachys officinalis,唇形科 ■used in names of plants that resemble the betony, e.g. water betony [用于与石蚕相像的植物名称,如water betony]
语源
Middle English : from Old French betoine, based on Latin betonica, perhaps from the name of an Iberian tribe