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Common Hemp-nettle - Galeopsis tetrahit

Favourite Photos

image species author location uploaded taken select
Common Hemp-nettle Common Hemp-nettle - Galeopsis tetrahit dylan North Somerset 15 Aug 2023, 11:58 p.m. 27 Aug 2022, 4:03 p.m.
Common Hemp-nettle Common Hemp-nettle - Galeopsis tetrahit dylan North Somerset 15 Aug 2023, 11:58 p.m. 27 Aug 2022, 3:47 p.m.
Common Hemp-nettle Common Hemp-nettle - Galeopsis tetrahit dylan North Somerset 15 Aug 2023, 11:58 p.m. 27 Aug 2022, 3:47 p.m.
Common Hemp-nettle Common Hemp-nettle - Galeopsis tetrahit dylan North Somerset 15 Aug 2023, 11:58 p.m. 27 Aug 2022, 3:48 p.m.

Species Description

Growing habit: Annual. Height: Up to 1 m. Flowers: July to October.

Stace 4:

Galeopsis tetrahit L. - Common Hemp-nettle.

Stems erect, to 1m; leaves narrowly ovate to ovate; calyx 12-14mm; corolla 13-20(25)mm, pinkish-red with darker lines and blotches on lower lip, the darker markings falling well short of tip of terminal lobe, often white but perhaps never yellow; 2n=32. Native; arable land, rough ground, woodland clearings, damp places; common over most of Britain and Ireland, rare in Channel Islands.

Key:

  • Stems with rigid bristly hairs, swollen below nodes when fresh
  • Corolla 13-20(25)mm, variously coloured; corolla-tube >1.5x as long as calyx (including teeth)
  • Terminal lobe of lower lip of corolla entire to very slightly emarginate, more or less flat

Useful Links:

Naturespot

Online Atlas of the British and Irish Flora

Kew

GBIF

EDIT

NBN