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.Kew World Checklist of Selected Plant FamiliesFlora of China Vol. 17 Page 156 鼬瓣花属 you ban hua shu Galeopsis Linnaeus, Sp. Pl. 2: 579. 1753. Altervista Flora Italiana, Genere Galeopsis includes photos and descriptions plus distribution maps for Italy, Europe, and North AmericaBiota of North America Program 2013 county distribution maps
The plants are poisonous. Several species are widespread weeds and some are used as medicinal herbs.
Species Species include: Galeopsis angustifolia Ehrh. ex Hoffm. 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 Galeopsis ladanum L. - widespread across much of Europe and Asia; naturalized in scattered sites in North America Galeopsis nana Otsch. - Caucasus (Georgia, Armenia, Azerbaijan) Galeopsis pubescens Besser – hairy or downy hempnettle - southern & central Europe from Britain and France east to Russia Galeopsis pyrenaica Bartl. - Pyrenees Mountains of Spain & France Galeopsis reuteri Rchb.f. - Alps of France & Italy Galeopsis segetum Neck. – downy hemp-nettle - Britain, Denmark, Netherlands, Belgium, France, Spain, Germany, Italy, Switzerland, Yugoslavia Galeopsis speciosa Mill. – large-flowered hemp-nettle, Edmonton hempnettle - northern & central Europe, Siberia; naturalized in Canada Galeopsis tetrahit L. – common hemp-nettle, brittlestem hempnettle - southern & central Europe from Portugal to Russia; naturalized in New Zealand and North America
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