Urtica dioica subsp. gracilis

Urtica gracilis, the Slender nettle[2], California nettle[3] or American stinging nettle,[4] is a herbaceous perennial plant native to most of the United States and Canada.[3] It was considered to be a subspecies of Urtica dioica, but new analysis has revealed it to be a species, and not closely related to Urtica dioica. Its morphology is similar to Urtica dioica, which led to it being classified as a subspecies of Urtica dioica. The 2 species will not cross pollinate.[5]

Urtica dioica subsp. gracilis
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Urticaceae
Genus: Urtica
Species:
U. dioica
Subspecies:
U. d. subsp. gracilis
Trinomial name
Urtica dioica subsp. gracilis
(Aiton) Selander
Synonyms[1]
  • Urtica californica Greene
  • Urtica dioica var. angustifolia Schltdl.
  • Urtica dioica var. californica (Greene) C.L. Hitchc.
  • Urtica dioica var. gracilis (Aiton) R.L. Taylor & MacBryde
  • Urtica dioica var. lyallii (S. Watson) C.L. Hitchc.
  • Urtica dioica var. procera (Muhl. ex Willd.) Wedd.
  • Urtica gracilis Aiton
  • Urtica lyallii S. Watson
  • Urtica procera Muhl. ex Willd.
  • Urtica viridis Rydb.

References
  1. "The Plant List: A Working List of All Plant Species".
  2. Hilty, John. "Slender Nettle Urtica gracilis". www.illinoiswildflowers.info. Retrieved 30 April 2023.
  3. "Urtica dioica subsp. gracilis". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 23 January 2018.
  4. "Calflora: Information on California plants for education, research and conservation, based on data contributed by dozens of public and private institutions and individuals, including the Consortium of Calif. Herbaria. 2013. Berkeley, California". Retrieved August 16, 2013.
  5. Henning, T.; Quandt, D.; Große-Veldmann, B.; Monro, A.K.; Weigend, M. (2014). "Weeding the Nettles II: A delimitation of 'Urtica dioica L.' (Urticaceae) based on morphological and molecular data, including a rehabilitation of Urtica gracilis Ait.". Phytotaxa. 162 (2): 61–83. doi:10.11646/phytotaxa.162.2.1.


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