Home/Species/ Cascade Onion

Allium cratericola

Eastw.

Cascade Onion

G3Vulnerable (G3?) Found in 8 roadless areas NatureServe Explorer →

G3VulnerableGlobal Rank

Identity

Unique IDELEMENT_GLOBAL.2.150714

Element CodePMLIL020L0

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single state or province

KingdomPlantae

PhylumAnthophyta

ClassMonocotyledoneae

OrderAsparagales

FamilyAmaryllidaceae

GenusAllium

Other Common Names

Cascade onion (EN)

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 Date2007-03-27

Change Date2007-03-26

Edition Date2007-02-05

Edition AuthorsDavis, G.

Range Extent20,000-200,000 square km (about 8000-80,000 square miles)

Number of Occurrences6 - 80

Rank Reasons

Allium cratericola is restricted to California and, although it occurs across a large area, it has a somewhat restricted elevation range and soil preference. There is no element occurrence data available, however, it is uncommon according to Hickman (1993) and does not have a large number of collections in California herbaria.

Range Extent Comments

Endemic to California; occurs in the Klamath Ranges, North Coast Ranges, north and central Sierra Nevada Foothils, southern High Sierra Nevada, Tehachapi Mountain Area, Western Transverse Ranges, and the San Jacinto Mountains (Hickman 1993).

Occurrences Comments

The precise number of distinct occurrences is unknown, however, as of March 2007 there are 56 accession records in the Consortium of California Herbaria database; 29 of these have been collected since 1980.

Ecology & Habitat

Habitat

Open, serpentine, volcanic, or granitic places; 300-1800 m (Hickman 1993 and FNA 2002).

Other Nations (1)

United StatesNNR

Province	Rank	Native
California	SNR	Yes

Plant Characteristics

Economic Value (Genus)Yes

Roadless Areas (8)

California (8)

Area	Forest	Acres
Backbone	Shasta-Trinity National Forest	11,466
Big Butte Shinbone	Mendocino National Forest	4,265
Elk Creek	Mendocino National Forest	23,182
Ishi	Lassen National Forest	21,805
Pattison	Shasta-Trinity National Forest	29,299
Pyramid Peak B	San Bernardino National Forest	7,194
Raymond Peak	Stanislaus National Forest	3,646
Underwood	Six Rivers National Forest	6,591

References (5)

Consortium of California Herbaria. 2007. Online database of vascular plant specimens in California herbaria. Available at http://ucjeps.berkeley.edu/consortium/. Accessed 2007.
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.
Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
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.
Munz, P.A., with D.D. Keck. 1959. A California flora. Univ. California Press, Berkeley. 1681 pp.