Taxon Details
Astragalus atratus var. mensanus
Darwin Mesa milk-vetch
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Taxon Summary:
Astragalus atratus var. mensanus, commonly known as Darwin Mesa milk-vetch, is a perennial herb in the Fabaceae that is found only in California. It occurs within Great Basin scrub, Joshua tree "woodland", and Pinyon and juniper woodland, growing at elevations from 1340 to 2315 meters. Astragalus atratus var. mensanus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Astragalus atratus Wats. var. mensanus Jones |
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Common Name: Darwin Mesa milk-vetch |
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| Family: | Fabaceae | |
| Element Code: | PDFAB0F0Z3 | |
| USDA Plants Symbol: | ASATM | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G4G5T2 |
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State Rank: |
S2 |
| Other Status: | BLM_S |
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CRPR Changes: |
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| Add Date: | 1980-01-01 |
| Date Edited: | 2021-08-25 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Apr-Jun
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Elevation:
1340 - 2315 meters 4395 - 7595 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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| Threat List Total: | 1 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 2 | 18 % |
| THREAT LIST: | ||
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| Grazing | 2 | 18% |
| Total Occurrences: | 11 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 0 | 0 | 0 | 11 |
| Occurrence Status: | |||||
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| Historical >20 Years | 9 | ||||
| Recent <=20 Years | 2 | ||||
| Presence: | |||||
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| Presumed Extant | 11 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Inyo (INY) |
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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) |
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Notes:
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Presumed Extant
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