Taxon Report
Astragalus traskiae Eastw.Trask's milk-vetch |
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Classification
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Scientific Name: |
Astragalus traskiae Eastw. |
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Common Name: |
Trask's milk-vetch |
| Family: | Fabaceae |
| Element Code: | PDFAB0F910 |
| USDA Plants Symbol: | ASTR4 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Feb-Jul | Feb-Jul |
| Elevation: | 5-245 (15-805) |
| General Habitats: | Coastal bluff scrub, Coastal dunes, Coastal scrub |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G3 |
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State Rank: |
S3 |
| State List: | CR |
| Fed List: | None |
| Other Status: | |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 15 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 13 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 2 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Santa Barbara (SBA), Ventura (VEN) | |
| Quads: Name (Quad Code) | |
| San Nicolas Island (3311924), Santa Barbara Island (3311848) | |
Threat List Data from the CNDDB
| Threat List Total: | 2 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 2 | 13 % | |
| Non-native plant impacts | 2 | 13% |
| Erosion/runoff | 1 | 6% |
Notes
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Populations on SBR Isl. declined severely in the late 1980's. Possibly threatened by Navy activities on SNI Isl. See Proceedings of the California Academy of Sciences |
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Threats: |
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Taxonomy: |
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].