Urtica Linnaeus. Stinging Nettle.
A genus of about 80 species, annual and perennial herbs, nearly cosmopolitan, but primarily in temperate regions of the Northern Hemisphere.
Ref: Boufford (1997) In Flora of North America Editorial Committee (1997); Friis In Kubitzki, Rohwer, & Bittrich (1993); Grosse-Veldmann & Weigend (2017); Henning et al. (2014); Woodland (1982); Woodland et al. (1982). Show full citations.
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© Gary P. Fleming | 
© Erik Danielson | 
© Oleg Kosterin, some rights reserved (CC BY), uploaded by Oleg Kosterin | Urtica pilulifera source | Original Image ⭷
© Keith Bradley | 
© Gary P. Fleming | 
© Jens N. Lallensack, some rights reserved (CC BY), uploaded by Jens N. Lallensack | Urtica pilulifera source | Original Image ⭷