Hempnettle

Galeopsis, commonly called hemp-nettle or hempnettle,^[2] is a genus of annual herbaceous plants native to Europe and Asia. Some species are naturalized in North America and New Zealand.^[1][3][4][5]

The plants are poisonous.^[6] Several species are widespread weeds^[2] and some are used as medicinal herbs.^[7][8]

Species

Species include:^[1]

1. Galeopsis × acuminata Rchb. - Germany (G. pubescens × G. tetrahit)
2. Galeopsis bifida Boenn. – bifid hemp-nettle, split-lip hemp-nettle, splitlip hempnettle, common hemp-nettle, and large-flowered hemp-nettle - widespread across much of Europe and Asia; naturalized in North America
3. Galeopsis × carinthiaca Porsch ex Fiori - Italy, Czech Republic (G. bifida × G. pubescens)
4. Galeopsis × haussknechtii Ludw. - Czech Republic (G. ladanum × G. segetum)
5. Galeopsis ladanum L. - widespread across much of Europe and Asia; naturalized in scattered sites in North America
6. Galeopsis × ludwigii Hausskn. - Germany, Czech Republic (G. bifida × G. tetrahit)
7. Galeopsis nana Otsch. - Caucasus (Georgia, Armenia, Azerbaijan)
8. Galeopsis × polychroma Beck - Austria, Italy, Czech Republic, Baltic Republics (G. pubescens × G. speciosa)
9. Galeopsis pubescens Besser – hairy or downy hempnettle - southern + central Europe from Britain and France east to Russia
10. Galeopsis pyrenaica Bartl. - Pyrenees Mountains of Spain + France
11. Galeopsis reuteri Rchb.f. - Alps of France + Italy
12. Galeopsis segetum Neck. – downy hemp-nettle - Britain, Denmark, Netherlands, Belgium, France, Spain, Germany, Italy, Switzerland, Yugoslavia
13. Galeopsis speciosa Mill. – large-flowered hemp-nettle, Edmonton hempnettle - northern + central Europe, Siberia; naturalized in Canada
14. Galeopsis tetrahit L. – common hemp-nettle, brittlestem hempnettle - southern + central Europe from Portugal to Russia; naturalized in New Zealand and North America
15. Galeopsis × wirtgenii F.Ludw. ex Briq. - France, Czech Republic

References

Wikimedia Commons has media related to Galeopsis.

Wikispecies has information related to Galeopsis.