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Allium tuolumnense

{{Short description|Species of flowering plant}}

{{Speciesbox

| taxon = Allium tuolumnense

| image = Allium tuolumnense 2.jpg

|status=G2

|status_system=TNC

|status_ref={{cite web|url=https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.161548/Allium_tuolumnense|title=Allium tuolumnense|website=NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer|author=NatureServe|publisher=NatureServe|location=Arlington, Virginia|access-date=15 May 2023|date=5 May 2023}}

| authority = (Ownbey & Aase ex Traub) S. Denison & McNeal

|synonyms=Allium sanbornii var. tuolumnense Ownbey & Aase ex Traub

}}

Allium tuolumnense is a rare species of wild onion, known by the common name Rawhide Hill onion.[http://www.calflora.org/cgi-bin/species_query.cgi?where-taxon=Allium+tuolumnense Calflora database — Allium tuolumnense]. Accessed 2013-02-05.

It is endemic to Tuolumne County, California, where it is known only from a small section of the Sierra Nevada foothills at Rawhide Hill and the Red Hills. It is a plant of serpentine soils.

Description

This onion, Allium tuolumnense, grows from a reddish-brown bulb one to two centimeters long, producing a slender erect stem up to {{convert|50|cm|in}} tall and usually a single leaf approximately the same length.[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242101412 eFloras.org]. Accessed 2013-02-05.

The stem is topped with a hemispheric inflorescence holding 20 to 60 flowers, each on a pedicel one or two centimeters long. Each flower is just under a centimeter wide when fully open, with six white or pink oval-shaped tepals. There are six stamens and the ovary has six pointed crests.Denison, S. S. & McNeal, Dale W. 1989. Madroño 36(2): 128.

See also

References

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External links

  • {{Commons-inline}}
  • [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?8349,8354,8421 Jepson Manual Treatment — Allium tuolumnense]
  • [http://plants.usda.gov/java/profile?symbol=ALTU USDA Plants Profile]
  • [http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242101412 Flora of North America]
  • [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Allium+tuolumnense Allium tuolumnense — U.C. Photo gallery]

{{Allium}}

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{{DEFAULTSORT:Allium Tuolumnense}}

tuolumnense

Category:Endemic flora of California

Category:Flora of the Sierra Nevada (United States)

Category:Natural history of Tuolumne County, California

Category:Onions

{{Allium-stub}}