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Astragalus monoensis

Barneby

Mono Milkvetch

G2Imperiled Found in 5 roadless areas NatureServe Explorer →

G2ImperiledGlobal Rank

Identity

Unique IDELEMENT_GLOBAL.2.155316

Element CodePDFAB0F5N0

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single state or province

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderFabales

FamilyFabaceae

GenusAstragalus

Synonyms

Astragalus monoensis var. monoensis

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.

Taxonomic Comments

As treated here, the species Astragalus monoensis excludes Astragalus ravenii. Astragalus monoensis var. monoensis and var. ravenii are both C2 in Fed. Reg. (90-02-21). Kartesz (1994 and 1999) treats them as distinct species, although Iseley (1998) maintains them as varieties of A. monoensis.

Conservation Status

Review Date2016-11-30

Change Date1988-03-08

Edition Date1987-06-19

Edition AuthorsBittman, R.L. (1987), rev. D. Gries (1998)

Range Extent<100-250 square km (less than about 40-100 square miles)

Number of Occurrences6 - 20

Rank Reasons

As treated here, Astragalus monoensis excludes variety ravenii, which is here treated separately at the species level, following Kartesz (1999). Astragalus monoensis is endemic to Mono County, California, known from eighteen occurrences. Overgrazing, trampling by sheep, off-road vehicle activity, and road maintenance are threats to this species.

Range Extent Comments

Pumice flats of Mono County, California.

Occurrences Comments

18 element occurrences in Natural Diversity Database.

Threat Impact Comments

Off-the-road vehicle use, road maintenance, sheep grazing (CNPS 2001).

Ecology & Habitat

Habitat

Great Basin scrub, upper montane coniferous forest; large, well-developed pumice flats, gravelly or sandy, sometimes with Artemisia arbuscula.

Terrestrial Habitats

Forest/WoodlandForest - ConiferShrubland/chaparral

Other Nations (1)

United StatesN2

Province	Rank	Native
California	S2	Yes

Plant Characteristics

Economic Value (Genus)Yes

Roadless Areas (5)

California (5)

Area	Forest	Acres
Dexter Canyon	Inyo National Forest	17,053
Glass Mountain	Inyo National Forest	52,867
Rock Creek West	Inyo National Forest	3,626
Sherwin	Inyo National Forest	3,140
Watterson	Inyo National Forest	6,922

References (3)

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.
Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
Skinner, M.W., and B.M. Pavlik, eds. 1997 (1994). Inventory of rare and endangered vascular plants of California. 1997 Electronic Inventory Update of 1994 5th edition, California Native Plant Society, Special Publication No. 1, Sacramento.