Allium shevockii

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Asparagales

Familia: Amaryllidaceae
Subfamilia: Allioideae
Tribus: Allieae
Genus: Allium
Species: Allium shevockii
Name

Allium shevockii McNeal
Distribution
Native distribution areas:

Continental: Northern America
Regional: Southwestern USA
California

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References

McNeal, D.W., Madroño 34: 150 1987.

USDA, NRCS. 2006. The PLANTS Database, 6 March 2006 (http://plants.usda.gov). Data compiled from various sources by Mark W. Skinner. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
Links

Govaerts, R. et al. 2018. Allium shevockii in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2018 Jul. 24. Reference page.
Hassler, M. 2018. Allium shevockii. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2018. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2018 Jul. 24. Reference page.
International Plant Names Index. 2018. Allium shevockii. Published online. Accessed: Jul. 24 2018.

Vernacular names
English: Spanish Needle onion

Allium shevockii is a rare species of wild onion known by the common name Spanish Needle onion.[2][3][4] It is found only in a limited area in the southern Sierra Nevada of California.[5][6]

Description

Allium shevockii produces a bulb one to one and a half centimeters wide which may have one or two large daughter bulblets. Atop the stipe is an umbel of up to 30 flowers, each just over a centimeter wide. The six shiny tepals are maroon to rich pink in color and may be white near the bases. In a manner unique among the onions, the tepals are reflexed, curling outward from the flower center.[4]
Distribution

The plant is endemic to southern California. Known locations occur in Spanish Needle Peak and Horse Canyon in the mountains of Kern County. The populations on Spanish Needle Peak are north of Owens Peak in the Sierra Nevada, near the boundaries with Tulare and Inyo Counties.[7]
References

"NatureServe Explorer 2.0".
McNeal, Dale W. 1987. Madroño 34(2): 150–154, figure 1
Kew World Checklist of Selected Plant Families
Flora of North America, Vol. 26 Page 252 Allium shevockii McNeal
Jepson Manual Treatment, University of California, Allium shevockii
United States Department of Agriculture Plants Profile — Allium shevockii (Spanish Needle onion)
Calfora taxon report 234, Allium shevockii D. McNeal, Spanish Needle onion