Species Details

Astragalus preussii var. laxiflorus

Lancaster milk-vetch

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Scientific Name:
Astragalus preussii Gray var. laxiflorus Gray
Common Name:
Lancaster milk-vetch
Family: Fabaceae
Element Code: PDFAB0F721
USDA Plants Symbol: ASPRL2
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: Mar-May
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Elevation:
700 - 700 meters
2295 - 2295 feet
General Habitats:
  • Chenopod scrub
Microhabitat Details:
Microhabitat:
Notes:
Known in CA only from near Lancaster and Edwards AFB, where extremely rare; only reported once in recent years. Field work needed. See Proceedings of the American Academy of Arts and Sciences 13:369 (1878) for original description, and Memoirs of the New York Botanical Garden 13:576 (1964) for taxonomic treatment.
Threats:
Taxonomy:
Total Occurrences: 5
Element Occurrence Ranks:
A B C D X U
0 0 0 0 2 3
Occurrence Status:
Historical >20 Years 5
Recent <=20 Years 0
Presence:
Presumed Extant 3
Possibly Extirpated 2
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Arizona (AZ), California (CA), Nevada (NV)
California Counties and Islands: Name (Code)
Kern (KRN), Los Angeles (LAX), Riverside (RIV)
Quads: Name (Quad Code)
Indio (3311662), La Quinta (3311663), Lancaster East (3411861), Lancaster West (3411862)?*, Martinez Mtn. (3311653), Redman (3411778)
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.
Presumed Extant
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