Leonurus cardiaca L.  
Family: Lamiaceae
lion's-tail, motherwort
Leonurus cardiaca image
Paul Drobot  
Etymology: Leonurus: from the Greek leon for "lion" and oura, "a tail," hence resembling a lion's tail
Plants: erect, perennial, 18"-60" tall aromatic forb; stems square, clustered
Leaves: opposite, often drooping, stalk as long as the blade, main leaves palmately divided and coarsely toothed
Flowers: pink to white, 5-parted, 1/3"-1/2" long, mostly stalkless; flower drawing inflorescence small, whorled clusters from the leaf axils; blooms June-Aug.
Fruits: 1-seeded nutlet
Habitat: disturbed sites, often in rich soil
Hazardous: Careful, this plant is hazardous!
Conservation Status: Introduced - naturalized
Leonurus cardiaca image
Matthew L. Wagner  
Leonurus cardiaca image
Stephen L. Solheim  
Leonurus cardiaca image
Robert W. Freckmann  
Leonurus cardiaca image
Paul Drobot  
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