Species Details

Astragalus atratus var. mensanus

Darwin Mesa milk-vetch

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Scientific Name:
Astragalus atratus Wats. var. mensanus Jones
Common Name:
Darwin Mesa milk-vetch
Family: Fabaceae
Element Code: PDFAB0F0Z3
USDA Plants Symbol: ASATM
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: Apr-Jun
Elevation:
1340 - 2315 meters
4395 - 7595 feet
General Habitat:
  • Great Basin scrub
  • Joshua tree "woodland"
  • Pinyon and juniper woodland
General Micro Habitat: volcanic clay, gravelly
Micro Habitat:
Notes:
Threatened by grazing. See Memoirs of the New York Botanical Garden 13:473 (1964) for taxonomic treatment.
Threats:
Taxonomy:
Other:
References:
Total Occurrences: 11
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 11
Occurrence Status:
Historical >20 Years 8
Recent <=20 Years 3
Presence:
Presumed Extant 11
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Inyo (INY)
Quads: Name (Quad Code)
Cactus Peak (3611717)?, Coso Peak (3611726), Hanging Rock Canyon (3711726), Homewood Canyon (3511784), Jackass Canyon (3611755), Last Chance Mtn. (3711736), Mountain Springs Canyon (3511785), Upper Centennial Flat (3611727)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Map

Presumed Extant
Counties   Quads