- Any plant of the genus Stachys.
- Stachys officinalis, an herb used in traditional European medicine.
- (Canada, US) Any plant of the genus Pedicularis (louseworts).
- (Stachys): heal-all, self-heal, woundwort, lamb's ears, hedgenettle
- (Stachys officinalis): purple betony, bishopwort, wild hop, bishop's wort, common hedgenettle
- (Pedicularis): lousewort, wood betony