horehound motherwort, more...
[Leonurus marrubiastrum L.]
Etymology: Chaiturus: possibly from chaet/chait, "bristle" -from the earlier genus Leonurus meaning "lion's tail"
Plants: biennial forb, aromatic; stems square
Fruits: 1-seeded nutlet
Conservation Status: Introduced - adventive
USDA Plants Database: Federal Distribution and detailed information including photos