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Allium tuolumnense

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Allium tuolumnense

Allium tuolumnense
Scientific classification
Kingdom: Plantae
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Allioideae
Genus: Allium
Species: A. tuolumnense
Binomial name
Allium tuolumnense
(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. [1]

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 50 centimetres (20 in) tall and usually a single leaf approximately the same length. [2]

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. [2][3]

See also

References

  1. ^ Allium tuolumnenseCalflora database — . Accessed 2013-02-05.
  2. ^ a b eFloras.org. Accessed 2013-02-05.
  3. ^ Denison, S. S. & McNeal, Dale W. 1989. Madroño 36(2): 128.

External links

  • Allium tuolumnenseJepson Manual Treatment —
  • USDA Plants Profile
  • Flora of North America
  • — U.C. Photo galleryAllium tuolumnense
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