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Allium tuolumnense

Imperiled  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
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.[2]

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[edit]

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.[3]

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.[3][4]

See also[edit]

References[edit]

  1. ^ NatureServe (5 May 2023). "Allium tuolumnense". NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 15 May 2023.
  2. ^ Calflora database — Allium tuolumnense. Accessed 2013-02-05.
  3. ^ a b eFloras.org. Accessed 2013-02-05.
  4. ^ Denison, S. S. & McNeal, Dale W. 1989. Madroño 36(2): 128.

External links[edit]


source: https://en.wikipedia.org/wiki/Allium_tuolumnense

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