Authors: C. Stace, R. van der Meijden (ed.) & I. de Kort (ed.)
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Scientific name:

Galeopsis bifida

Vernacular name:

Hemp-nettle, Bifid


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Galeopsis tetrahit - Hemp-nettle, Common
Phlomis russeliana - Sage, Turkish

Bifid Hemp-nettle

Scientific name: Galeopsis bifida Boenn.

Diagnostic features
Differs from Galeopsis tetrahit in usually shorter corolla (13-16mm) coloured like Galeopsis tetrahit or like Galeopsis speciosa or white.
Darker markings on lower lip very extensive to near margin (sometimes whole terminal lobe dark).
Terminal lobe of lower lip of corolla clearly emarginate, convex (with revolute sides).

Chromosome number: 2n=32.

Habitat
Native.

Distribution
In similar places to Galeopsis tetrahit and probably at least as common and widespread.

This species is keyed out on Page 3167 in the Text Key.

Hybrids
- Galeopsis x ludwigii Hausskn. (= Galeopsis tetrahit x Galeopsis bifida) is intermediate in corolla shape and has 20-70 per cent pollen fertility and low seed-set; it has been recorded from Wales and Central England, but is probably frequent.

Galeopsis bifida (Hemp-nettle, Bifid)
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Hemp-nettle, Bifid
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