Robert W. Freckmann Herbarium

  Galeopsis tetrahit L. image
Photographer: Janice Stiefel           

Botanical Illustration

Botanical Illustration

Emmet J. Judziewicz

Kitty Kohout

Matthew L. Wagner

Robert Bierman

Robert W. Freckmann

Janice Stiefel
Family Lamiaceae
Galeopsis tetrahit L.
brittle-stem hemp-nettle, common hemp-nettle, hemp-nettle
Galeopsis: Greek for "weasel" and "appearance," from likeness of corolla to head of a weasel
tetrahit: 4 angled
  Restricted Invasive - Eradicate!  Stop It symbol- click for definition
County distribution map- click for detailed distribution maps.
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Status: Introduced - naturalized; ecologically invasive
Plant: erect, annual, 6"-36" tall forb, aromatic, branched toward the top when mature; stems square, swollen at the leaf nodes, and with rough, coarse, spreading hairs; taprooted
Flower: pink to white often with 2 yellow or white spots, 5-parted, 3/4" long, irregularly tube-shaped; flower drawing inflorescence of several, dense, rounded whorls terminal and from the upper leaf axils; blooms June-Sept.
Fruit:1-seeded nutlet
Leaf:opposite, stalked, ovate, coarsely toothed
Habitat: disturbed sites

More Information Natural Communities Herbarium Specimens
All Galeopsis list Google- Images or Text
(for list of synonyms - see the varieties)

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