Taxon Report
Astragalus pachypus Greene var. jaegeri Munz & McBurneyJaeger's milk-vetch |
|
Taxon Summary
Astragalus pachypus var. jaegeri, commonly known as Jaeger's milk-vetch, is a perennial shrub in the Fabaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Coastal scrub, and Valley and foothill grassland, growing at elevations from 365 to 975 meters. Astragalus pachypus var. jaegeri is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.Classification
|
Scientific Name: |
Astragalus pachypus Greene var. jaegeri Munz & McBurney |
|
Common Name: |
Jaeger's milk-vetch |
| Family: | Fabaceae |
| Element Code: | PDFAB0F6G1 |
| USDA Plants Symbol: | ASPAJ |
|
Synonyms/Other Names: |
|
Ecology and Life History
| Lifeform: | perennial shrub |
| Blooming Period: Dec-Jun | Dec-Jun |
| Elevation: | 365-975 (1200-3200) |
| General Habitats: | Chaparral, Cismontane woodland, Coastal scrub, Valley and foothill grassland |
| Microhabitat: | Rocky (sometimes), Sandy (sometimes) |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G4T1 |
|
State Rank: |
S1 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_CalBG/RSABG; USFS_S |
|
CRPR Changes: |
|
Occurrence Data from the CNDDB
| Total Occurrences: | 18 |
| Element Occurrence Ranks: | |
| Excellent (A) | 1 |
| Good (B) | 1 |
| Fair (C) | 0 |
| Poor (D) | 1 |
| None (X) | 0 |
| Unknown (U) | 15 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Riverside (RIV), San Diego (SDG) | |
| Quads: Name (Quad Code) | |
| Beaumont (3311688), Blackburn Canyon (3311667), Bucksnort Mtn. (3311645), Cabazon (3311687), Lakeview (3311771), Sage (3311658), San Jacinto (3311678), Temecula (3311742), Vail Lake (3311648), Warner Springs (3311636) | |
Threat List Data from the CNDDB
| Threat List Total: | 7 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 4 | 22 % | |
| Development | 2 | 11% |
| Foot traffic/trampling | 1 | 5% |
| Grazing | 1 | 5% |
| Other | 1 | 5% |
| Road/trail construction/maint. | 1 | 5% |
| Agriculture | 1 | 5% |
| Dam/Inundation | 1 | 5% |
Notes
| To be looked for in northern SDG Co., west of Warner Springs. Some habitat probably lost during creation of Vail Lake; also threatened by urbanization, vehicles, road maintenance, and agriculture. See Bulletin of the Southern Academy of Sciences 31:67 (1932) for original description, and Memoirs of the New York Botanical Garden 13:489 (1964) for taxonomic treatment. |
|
Threats: |
|
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 25 October 2025].