Home/Species/ Depauperate Milkvetch

Astragalus pauperculus

Greene

Depauperate Milkvetch

G4Apparently Secure Found in 1 roadless area NatureServe Explorer →

G4Apparently SecureGlobal Rank

LowThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.155153

Element CodePDFAB0F6N0

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single state or province

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderFabales

FamilyFabaceae

GenusAstragalus

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

Rank MethodLegacy Rank calculation - Excel v3.1x

Review Date2014-10-01

Change Date2014-10-01

Edition Date2014-10-01

Edition AuthorsOliver, L., rev. R. Bittman (2014)

Threat ImpactLow

Range Extent5000-20,000 square km (about 2000-8000 square miles)

Number of Occurrences81 - 300

Rank Reasons

Astragalus pauperculus is endemic to California and known from Butte, Placer, Shasta, Tehama and Yuba counties (CNPS 2001). While A. pauperculus is considered rare, it is distributed widely enough and found in sufficient numbers that the threat of extinction is currently low (CNPS 2001). This species is found in chaparral, cismontane woodland, and valley and foothill grassland on vernally mesic and volcanic soil between 60 and 855 meters in elevation (CNPS 2001).

Range Extent Comments

Endemic to California and known from Butte, Placer, Shasta, Tehama and Yuba counties (CNPS 2001).

Occurrences Comments

There are 83 unprocessed sources in CNDDB (2014), and 94 Consortium of California Herbaria records (2014).

Threat Impact Comments

Vehicles and weeds are possible threats (CNDDB 2014).

Ecology & Habitat

Other Nations (1)

United StatesN4

Province	Rank	Native
California	S4	Yes

Threat Assessments

Threat	Scope	Severity	Timing
6 - Human intrusions & disturbance	—	—	—
8 - Invasive & other problematic species, genes & diseases	—	—	—
8.1 - Invasive non-native/alien species/diseases	—	—	—
8.2 - Problematic native species/diseases	—	—	—

Plant Characteristics

Economic Value (Genus)Yes

Roadless Areas (1)

California (1)

Area	Forest	Acres
Ishi	Lassen National Forest	21,805

References (3)

California Native Plant Society (CNPS). 2001. Inventory of Rare and Endangered Plants of California (sixth edition). Rare Plant Scientific Advisory Committee, David P. Tibor, Convening Editor. California Native Plant Society. Sacramento, CA. x + 388pp.
California Natural Diversity Database (CNDDB). 2014. RareFind Version 5. California Department of Fish and Game, Sacramento.
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.

Astragalus pauperculus

—