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Photographer: Janice Stiefel
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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!
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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;  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 |
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