Allium nevii

Allium nevii
Allium nevii in Kittitas County, Washington USA
Conservation status
Vulnerable  (NatureServe) [1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Amaryllidaceae
Subfamily:	Allioideae
Genus:	Allium
Subgenus:	A. subg. Amerallium
Species:	A. nevii
Binomial name
Allium nevii S. Wats.
Synonyms [2]
Allium douglasii var. nevii (S. Wats.) Ownbey & Mingrone

Allium nevii, known by the common name Nevius' onion or Nevius' garlic, is a plant species native to central Washington (Klickitat, Yakima, Kittitas and Chelan Counties) and north-central Oregon (Wasco and Hood River Counties) in the United States. It grows in wet meadows and along stream banks at elevations up to 2000 m. ^{[3] [4]}

Description

Allium nevii produces egg-shaped bulbs up to 2 cm across. One plant will generally have 1-3 scapes, each round or slightly flattened and up to 25 cm tall. Flowers are in umbels of as many as 30 flowers, each bell-shaped and about 7 mm across. Tepals are rose-colored; anthers and pollen blue. ^{[3] [5]} The inner coats range from reddish to white. The outer coats range from gray and brown. The thin membrane has a unique network pattern. The flowers bloom period is between May and June. ^[6] It has two basal leaves, one leaf-less scape, and a cluster of flowers at its tip. The six tepals are narrowly lanceolate with pointed tips. The tepals are usually pink, and rarely white. ^[7]

Taxonomy

Historically, Allium nevii was treated as part of the Allium douglasii alliance. ^[8] Both A. douglasii and A. nevii were placed in the Ownbey Allium falcifolium alliance ^[9] and subsequently by Traub in subsection Falcifolia, section Lophioprason, subgenus Amerallium (see Taxonomy of Allium). ^[10] It was formerly considered a variety of Allium douglasii. ^[7]

References

1. "NatureServe Explorer - Allium nevii". NatureServe Explorer Allium nevii. NatureServe. 2022-06-22. Retrieved 22 Jun 2022.
2. Tropicos
3. Flora of North America v 26 p 267, Allium nevii
4. BONAP (Biota of North America Program) floristic synthesis, Allium nevii
5. Watson, Sereno. 1879. Proceedings of the American Academy of Arts and Sciences 14: 231.
6. "Allium nevii - Burke Herbarium Image Collection". burkeherbarium.org. Retrieved 2023-08-19.
7. "Nevius' Garlic, Nevius' Onion: Allium nevii (Synonym: Allium douglasii var. nevii)". science.halleyhosting.com. Retrieved 2023-08-19.
8. Rieseberg et al 1987.
9. Saghir et al 1966.
10. Traub 1968.

Bibliography

• Peterson, Paul M.; Annable, Carol R.; Rieseberg, Loren H. (April 1988). "Systematic Relationships and Nomenclatural Changes in the Allium douglasii Complex (Alliaceae)". Systematic Botany. 13 (2): 207. Bibcode:1988SysBo..13..207P. doi:10.2307/2419099. JSTOR   2419099.
• Rieseberg, Loren H.; Peterson, Paul M.; Soltis, Douglas E.; Annable, Carol R. (November 1987). "Genetic Divergence and Isozyme Number Variation Among Four Varieties of Allium douglasii (Alliaceae)". American Journal of Botany . 74 (11): 1614. doi:10.2307/2444130. JSTOR   2444130.
• Saghir, Abdur Rahman B.; Mann, Louis K.; Ownbey, Marion; Berg, Rolf Y. (May 1966). "Composition of Volatiles in Relation to Taxonomy of American Alliums". American Journal of Botany . 53 (5): 477–484. doi:10.2307/2440346. JSTOR   2440346.
• Traub, Hamilton P (1968). "The subgenera, sections and subsections of Allium L.". Plant Life . 24: 147–163.