Short description: Subspecies of flowering plant

Urtica dioica subsp. gracilis

Scientific classification
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.

Urtica gracilis, the California nettle[2] or American stinging nettle,[3] is a herbaceous perennial plant native to most of the United States and Canada .[2] 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.[4]

## References

1. ↑ "The Plant List: A Working List of All Plant Species". http://www.theplantlist.org/tpl/record/tro-33400022.
2. ↑ 2.0 2.1 {{citation | mode = cs1 | title = Urtica dioica subsp. gracilis | work = Germplasm Resources Information Network (GRIN) | url = | publisher = [[Organization:Agricultural Research ServAgricultural Research Service (ARS), United States Department of Agriculture (USDA) | access-date = 23 January 2018 }}
3. ↑ "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". http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=8186. Retrieved August 16, 2013.
4. ↑ 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. https://www.researchgate.net/publication/260815095_Weeding_the_Nettles_II_A_delimitation_of_'Urtica_dioica_L'_Urticaceae_based_on_morphological_and_molecular_data_including_a_rehabilitation_of_Urtica_gracilis_Ait.'''Urtica+dioica''+L.'+(Urticaceae)+based+on+morphological+and+molecular+data,+including+a+rehabilitation+of+''Urtica+gracilis''+Ait.&rft.jtitle=Phytotaxa&rft.aulast=Henning&rft.aufirst=T.&rft.au=Henning, T.&rft.au=Quandt, D.&rft.au=Große-Veldmann, B.&rft.au=Monro, A.K.&rft.au=Weigend, M.&rft.date=2014&rft.volume=162&rft.issue=2&rft.pages=61–83&rft_id=info:doi/10.11646/phytotaxa.162.2.1&rft_id=https://www.researchgate.net/publication/260815095_Weeding_the_Nettles_II_A_delimitation_of_'Urtica_dioica_L'_Urticaceae_based_on_morphological_and_molecular_data_including_a_rehabilitation_of_Urtica_gracilis_Ait&rfr_id=info:sid/en.wikibooks.org:Biology:Urtica_dioica_subsp._gracilis">

## External links

Wikidata ☰ Q16993348 entry

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