Taxon Details
Astragalus webberi
Webber's milk-vetch
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Taxon Summary:
Astragalus webberi, commonly known as Webber's milk-vetch, is a perennial herb in the Fabaceae that is found only in California. It occurs within Broadleafed upland forest, Lower montane coniferous forest, and Meadows and seeps, growing at elevations from 731 to 1250 meters. Astragalus webberi is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.|
Scientific Name: Astragalus webberi Gray |
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Common Name: Webber's milk-vetch |
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| Family: | Fabaceae | |
| Element Code: | PDFAB0F9J0 | |
| USDA Plants Symbol: | ASWE | |
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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.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | BLM_S; SB_UCSC; USFS_S |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2024-11-05 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: May-Jul
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Elevation:
731 - 1250 meters 2400 - 4100 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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| Threat List Total: | 9 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 10 | 83 % |
| THREAT LIST: | ||
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| Road/trail construction/maint. | 9 | 75% |
| Other | 4 | 33% |
| Vandalism/dumping/litter | 3 | 25% |
| ORV activity | 2 | 16% |
| Wood cutting or brush clearing | 1 | 8% |
| Recreational use (non-ORV) | 1 | 8% |
| Logging | 1 | 8% |
| Mining | 1 | 8% |
| Non-native plant impacts | 1 | 8% |
| Total Occurrences: | 12 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 5 | 3 | 1 | 1 | 2 |
| Occurrence Status: | |||||
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| Historical >20 Years | 7 | ||||
| Recent <=20 Years | 5 | ||||
| Presence: | |||||
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| Presumed Extant | 11 | ||||
| Possibly Extirpated | 1 | ||||
| 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) Plumas (PLU) |
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Quads: Name (Quad Code) Caribou (4012112), Crescent Mills (4012018), Taylorsville (4012017), Twain (4012111) |
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Notes:
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Presumed Extant
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