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 to 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. ^ a b 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. ^ a b "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. 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.