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Allium monticola

A. Davids.

San Bernardino Mountain Onion

G2Imperiled (G2G3) Found in 9 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.134128
Element CodePMLIL021G0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderAsparagales
FamilyAmaryllidaceae
GenusAllium
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Review Date2006-02-08
Change Date2006-02-08
Edition Date2007-02-08
Edition AuthorsG. Davis (2007)
Range Extent250-20,000 square km (about 100-8000 square miles)
Rank Reasons
Allium monticola has been collected only from a limited area of the southern California mountains surrounding Los Angeles. It is unknown how many separate occurrences there are and how many are extant. It appears restricted to rocky and talus slopes along alpine ridges.
Range Extent Comments
Allium monticola is endemic to southwestern California in the Western Transverse Ranges, the San Gabriel Mountains, the San Bernardino Mountains, and the Peninsular Ranges (Hickman 1993). As of Feb. 2007, mappable specimens occur within a 2700 square mile area (Consortium of California Herbaria 2007), but there may be other occurrences outside this area.
Ecology & Habitat

Habitat

Rocky ridges and talus slopes (Hickman 1993); alpine ridges and talus (FNA 2002). In montane coniferous forests.
Terrestrial Habitats
Forest/WoodlandForest - ConiferBare rock/talus/scree
Other Nations (1)
United StatesN2
ProvinceRankNative
CaliforniaSNRYes
Plant Characteristics
Economic Value (Genus)Yes
Roadless Areas (9)
California (9)
AreaForestAcres
Circle MountainSan Bernardino National Forest6,375
ColdwaterCleveland National Forest8,402
Cucamonga AAngeles National Forest1,249
Cucamonga BSan Bernardino National Forest11,933
Cucamonga CSan Bernardino National Forest4,106
Granite PeakSan Bernardino National Forest450
Pleasant ViewAngeles National Forest26,395
Pyramid Peak BSan Bernardino National Forest7,194
Sheep MountainAngeles National Forest21,098
References (4)
  1. Consortium of California Herbaria. 2007. Online database of vascular plant specimens in California herbaria. Available at http://ucjeps.berkeley.edu/consortium/. Accessed 2007.
  2. Flora of North America Editorial Committee (FNA). 2002a. Flora of North America north of Mexico. Vol. 26. Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York. xxvi + 723 pp.
  3. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
  4. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.