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Montana Field Guide

Montana Field Guides

Brittle-stem Hempnettle - Galeopsis tetrahit

Exotic Species (not native to Montana)

Global Rank: GNR
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 1

External Links






 
General Description
Annual. Stems erect, 15–70 cm, hispid. Leaf blades ovate, serrate, strigose, hirsute, glandular, 3–10 cm long. Inflorescence of verticillasters at upper leaf nodes. Flowers: calyx 8–12 mm long, lobes ca. equal, the tube, spine-tipped; corolla purple, spotted, 15–23 mm long, bilabiate; upper lip hood-like; lower lip with a pair of vertical projections; stamens 4 (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Introduced from Eurasia to much of n. U.S. and adjacent Canada (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Disturbed soil of open, wet forest, woodlands, meadows, often along streams, trails; valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Brittle-stem Hempnettle — Galeopsis tetrahit.  Montana Field Guide.  .  Retrieved on , from