Allium perdulce

Allium perdulce, the Plains onion, is a plant species native to the central part of the United States and cultivated as an ornamental elsewhere.[1] It has been found in Texas, New Mexico, Oklahoma, Kansas, Nebraska, South Dakota, and one county in western Iowa (Woodbury County).[2][3]

Plains onion
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Allioideae
Genus: Allium
Species:
A. perdulce
Binomial name
Allium perdulce
S.V.Fraser 1940

Allium perdulceproduces 2-20 bulbs, each up to 3 cm (1.2 inches) in diameter. Flowers are urn-shaped, up to 10 mm (0.4 inches) across; tepals deep rose to purple (except in var. sperryi; see below); pollen yellow.[2][4][5][6]

Two varieties are recognized:[2][7]

  • Allium perdulce var. perdulce
  • Allium perdulce var. sperryi Ownbey[8][9][10]

Var. sperryi is a color variant known only from western Texas in the trans-Pecos region. It has white to pale pink flowers instead of the more widespread deep rose to purple.[2]

References
  1. "Gardening Europa, Allium perdulce". Archived from the original on 2014-03-14. Retrieved 2014-03-14.
  2. Flora of North America, Allium perdulce
  3. BONAP (Biota of North America Program), 2014 county distribution map, Allium perdulce
  4. Fraser, Samuel Victorian. 1940. Transactions of the Kansas Academy of Science 42: 124–126.
  5. Great Plains Flora Association. 1986. Flora of the Great Plains i–vii, 1–1392. University Press of Kansas, Lawrence.
  6. Correll, D. S. & M. C. Johnston. 1970. Manual of the Vascular Plants of Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.
  7. The Plant List
  8. Ownbey, Francis Marion. 1950. Research Studies of the State College of Washington 18(4): 202–203, f. 4.
  9. Traub, Hamilton Paul, & Ownbey, Francis Marion. 1967. Plant Life 23: 110.
  10. photo of herbarium specimen at Missouri Botanical Garden, isotype of Allium perdulce var. sperryi
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