''Galeopsis'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of annual herbaceous plants native to Europe and Asia. Members of this genus often have common names ending in hemp-nettle or hempnettle. Some species are naturalized in North America and New Zealand.Kew World Checklist of Selected Plant Families
/ref> The plants are poisonous. Several species are widespread weeds and some are used as

medicinal herb Medicinal plants, also called medicinal herbs, have been discovered and used in traditional medicine practices since prehistoric times. Plants synthesize hundreds of chemical compounds for various functions, including Plant defense against h ...

Species

Species include: *''Galeopsis'' × ''acuminata'' Rchb. - Germany ''(G. pubescens'' × ''G. tetrahit)'' *''

Galeopsis bifida ''Galeopsis bifida'' is an annual plant native to Europe and Asia but now found in Canada and the northeastern, midwestern parts of the United States. It has many common names such as bifid hemp-nettle, split-lip hemp-nettle, common hemp-nettle, ...

'' 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 *''Galeopsis'' × ''carinthiaca'' Porsch ex Fiori - Italy, Czech Republic ''(G. bifida'' × ''G. pubescens)'' *''Galeopsis'' × ''haussknechtii'' Ludw. - Czech Republic ''(G. ladanum'' × ''G. segetum)'' *''

Galeopsis ladanum ''Galeopsis ladanum'' is a species of flowering plant belonging to the family Lamiaceae The Lamiaceae ( ) or Labiatae are a family (biology), family of flowering plants commonly known as the mint, deadnettle, or sage family. Many of the pl ...

'' L. - widespread across much of Europe and Asia; naturalized in scattered sites in North America *''Galeopsis'' × ''ludwigii'' Hausskn. - Germany, Czech Republic ''(G. bifida'' × ''G. tetrahit)'' *''

Galeopsis nana ''Galeopsis'' is a genus of annual herbaceous plants native to Europe and Asia. Members of this genus often have common names ending in hemp-nettle or hempnettle. Some species are naturalized in North America and New Zealand. The plants are pois ...

'' Otsch. - Caucasus (Georgia, Armenia, Azerbaijan) *''Galeopsis'' × ''polychroma'' Beck - Austria, Italy, Czech Republic, Baltic Republics ''(G. pubescens'' × ''G. speciosa)'' *''

Galeopsis pubescens ''Galeopsis pubescens'', also known as the hairy and downy hempnettle, is a Herbaceous plant, herbaceous annual plant species in the family Lamiaceae, that can be found growing in various European countries. Taxonomy ''Galeopsis pubescens'' wa ...

'' Besser – hairy or downy hempnettle - southern & central Europe from Britain and France east to Russia *''

Galeopsis pyrenaica ''Galeopsis'' is a genus of annual herbaceous plants native to Europe and Asia. Members of this genus often have common names ending in hemp-nettle or hempnettle. Some species are naturalized in North America and New Zealand. The plants are pois ...

'' Bartl. - Pyrenees Mountains of Spain & France *''

Galeopsis reuteri ''Galeopsis'' is a genus of annual herbaceous plants native to Europe and Asia. Members of this genus often have common names ending in hemp-nettle or hempnettle. Some species are naturalized in North America and New Zealand. The plants are pois ...

'' Rchb.f. - Alps of France & Italy *''

Galeopsis segetum ''Galeopsis segetum'', commonly known as downy hemp-nettle, is a species of flowering plant in the sage family, Lamiaceae. It grows as a weed in arable ground throughout Europe. Although superficially resembling the stinging nettle ''U ...

'' Neck. – downy hemp-nettle - Britain, Denmark, Netherlands, Belgium, France, Spain, Germany, Italy, Switzerland, Yugoslavia *''

Galeopsis speciosa ''Galeopsis speciosa'', the large-flowered hemp-nettle or Edmonton hempnettle, is a species of annual herbaceous plants in the family Lamiaceae. It is native to northern and central Europe and Siberia. It has become a widespread introduced weed ...

'' Mill. – large-flowered hemp-nettle, Edmonton hempnettle - northern & central Europe, Siberia; naturalized in Canada *''

Galeopsis tetrahit ''Galeopsis tetrahit'', the common hemp-nettle or brittlestem hempnettle, is a flowering plant in the family Lamiaceae, native to Europe and northwestern Asia. It is a herbaceous annual plant growing to 1 m tall; it is a pioneer species and thri ...

'' L. – common hemp-nettle, brittlestem hempnettle - southern & central Europe from Portugal to Russia; naturalized in New Zealand and North America *''Galeopsis'' × ''wirtgenii'' F.Ludw. ex Briq. - France, Czech Republic

References

Lamiaceae genera Medicinal plants Taxa named by Carl Linnaeus {{Lamiaceae-stub