Pictorial guide to the flora of the British Isles

Home ⟩ Pictorial Guide ⟩ Lamiaceae / Labiatae ⟩ Galeopsis speciosa / large-flowered hemp-nettle

Galeopsis speciosa Mill.

large-flowered hemp-nettle (Lamiaceae / Labiatae)

 SpreadBias within British IslesDirection of bias
WidespreadSlight tendencyNE
Plant Atlas 2020
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Galeopsis speciosa is an introduced species that is now widespread in Scotland, Northern Ireland, North Wales and northern and central England, especially in potato fields.

Galashiels (VC79: Selkirkshire); 2014-08-05

 large-flowered hemp-nettle / Galeopsis speciosa: _Galeopsis speciosa_ is an introduced species that is now widespread in Scotland, Northern Ireland, North Wales and northern and central England, especially in potato fields.

The pale flowers with a purple lower lip can lead to confusion with Melittis melissophyllum, but the sepals of Galeopsis speciosa end in a long, narrow point.

Hochschwab, Austria; 2005-07-24

 large-flowered hemp-nettle / Galeopsis speciosa: The pale flowers with a purple lower lip can lead to confusion with _Melittis melissophyllum_, but the sepals of _Galeopsis speciosa_ end in a long, narrow point.

The corolla-tube of Galeopsis speciosa is twice as long as the whole calyx.

Galashiels (VC79: Selkirkshire); 2014-08-05

 large-flowered hemp-nettle / Galeopsis speciosa: The corolla-tube of _Galeopsis speciosa_ is twice as long as the whole calyx.

All images copyright © Christopher J. Dixon unless otherwise indicated.

L-R: Bidens tripartita, Melilotus officinalis, Mimulus guttatus, Thalictrum flavum, Ranunculus peltatus, Anchusa arvensis, Malva alcea, Lolium perenne