SimplePlant

Lamiaceae

Brittlestem hempnettle

Galeopsis tetrahit L.

Family
Lamiaceae
Genus
Galeopsis

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Brittlestem hempnettle (Galeopsis tetrahit)
FlowerPhoto: Emanuele Santarelli, CC BY-SA 4.0, from iNaturalist

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Common names

By language (23)
Asturian
Cáñamu
Azerbaijani
Adi işırqan
Belarusian
Зябер звычайны, Жабер
Bulgarian
Бударица, Петниста бударица
Catalan
Galéopside à tige carrée, Galéopsis tétrahit, Ortie royale
Czech
Konopice polní
Danish
Almindelig Hanekro
Dutch
Gewone hennepnetel
English
Brittlestem hempnettle, Common hemp nettle, Common hemp-nettle, Hemp nettle
Finnish
Karheapillike
French
Galéopside à tige carrée, Galéopsis tétrahit, Ortie royale
German
Dorn-Hohlzahn, Gemeiner Hohlzahn, Gewöhnlicher Hohlzahn, Stacheliger Hohlzahn, Stechender Hohlzahn, Galéopside à tige carrée, Galéopsis tétrahit, Katzengesicht
hsb
Kałaty zabrij
Lithuanian
Dirvinė aklė, Galéopside à tige carrée, Galéopsis tétrahit, Ortie royale
Norwegian Nynorsk
Kvassdå
Persian
گالئوپسیس تتراهیت
Polish
Poziewnik szorstki
Russian
Медовник, Пикульник обыкновенный, Жабрей, Медовник колючий, Пикульник жёстковолосый
Slovak
Konopnica napuchnutá
Spanish
Cáñamo bastardo, Galeópside, Hierba benjamina, Menta de agua, Ortiga blanca, Ortigón
Swedish
Röddån, Pipdån, Galéopside à tige carrée, Galéopsis tétrahit, Ortie royale
Walloon
Såvaedje tchene
Welsh
Y benboeth

Synonyms

  • Galeopsis alpicola Nyman
  • Galeopsis beckii (K.Malý) Dalla Torre & Sarnth.
  • Galeopsis crenatifolia Sennen
  • Galeopsis gacognei Nyman
  • Galeopsis glaucocerata P.Fourn.
  • Galeopsis grandiflora Suter
  • Galeopsis ionantha Borbás
  • Galeopsis lactiflora Borbás
  • Galeopsis laramberguei Martrin-Donos
  • Galeopsis leucantha Jord.
  • Galeopsis michelianae Turra
  • Galeopsis neglecta Schult.
  • Galeopsis nodosa var. praecox (Jord.) St.-Lag.
  • Galeopsis nodosa var. regularis Gray
  • Galeopsis nodosum (Moench) Gray
  • Galeopsis persetosa Borbás
  • Galeopsis praecox Jord.
  • Galeopsis pseudotetrahit P.Fourn.
  • Galeopsis reichenbachii Reut.
  • Galeopsis silvestris Borbás
  • Galeopsis subtatrensis Borbás
  • Galeopsis tetrahit f. alba Farw.
  • Galeopsis tetrahit f. albiflora House
  • Galeopsis tetrahit subsp. glaucocerata P.Fourn.
  • Galeopsis tetrahit subsp. glaucoserata P.Fourn.
  • Galeopsis tetrahit subsp. parviflora Ehrh.
  • Galeopsis tetrahit subsp. praecox (Jord.) Rapin
  • Galeopsis tetrahit subsp. praecox (Jord.) Nyman
  • Galeopsis tetrahit subsp. reichenbachii (Reut.) Nyman
  • Galeopsis tetrahit subsp. verlotii (Jord.) Nyman
  • Galeopsis tetrahit var. arvensis Schltdl.
  • Galeopsis tetrahit var. beckii K.Malý
  • Galeopsis tetrahit var. idiotropa Briq.
  • Galeopsis tetrahit var. lazistanica Briq.
  • Galeopsis tetrahit var. minor H.Post
  • Galeopsis tetrahit var. pallens Wahlenb.
  • Galeopsis tetrahit var. pallens Fr.
  • Galeopsis tetrahit var. praecox (Jord.) Gren.
  • Galeopsis tetrahit var. reichenbachii (Reut.) Rapin
  • Galeopsis tetrahit var. sylvestris Schltdl.

and 14 more.

Flowers

In flower
July to September (from 922 flowering iNaturalist observations worldwide)

Characteristics

Growth habit
Forb/herb
Lifespan
Annual
In the US and Canada
Alaska: introduced, Canada: introduced, Lower 48 states: introduced, St. Pierre and Miquelon: introduced

Photos

More in Galeopsis

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.