Taxon Report
Astragalus webberi GrayWebber's milk-vetch |
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Classification
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Scientific Name: |
Astragalus webberi Gray |
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Common Name: |
Webber's milk-vetch |
| Family: | Fabaceae |
| Element Code: | PDFAB0F9J0 |
| USDA Plants Symbol: | ASWE |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: May-Jul | May-Jul |
| Elevation: | 731-1250 (2400-4100) |
| General Habitats: | Broadleafed upland forest, Lower montane coniferous forest, Meadows and seeps |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G1 |
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State Rank: |
S1 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_UCSC; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 12 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 5 |
| Fair (C) | 3 |
| Poor (D) | 1 |
| None (X) | 1 |
| Unknown (U) | 2 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Plumas (PLU) | |
| Quads: Name (Quad Code) | |
| Caribou (4012112), Crescent Mills (4012018), Taylorsville (4012017), Twain (4012111) | |
Threat List Data from the CNDDB
| Threat List Total: | 9 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 10 | 83 % | |
| 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% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 6 January 2025].