Astragalus rattanii Gray var. jepsonianus BarnebyJepson's milk-vetchPrint Report |
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Scientific Name: |
Astragalus rattanii Gray var. jepsonianus Barneby |
Common Name: |
Jepson's milk-vetch |
Family: | Fabaceae |
Element Code: | PDFAB0F7E1 |
USDA Plants Symbol: | ASRAJ |
Synonyms/Other Names: |
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Lifeform: | annual herb |
Blooming Period: Mar-Jun | Mar-Jun |
Elevation: | 295-700 (970-2295) |
General Habitats: | Chaparral, Cismontane woodland, Valley and foothill grassland |
Microhabitat: | Serpentine (often) |
Microhabitat Details: |
CA Rare Plant Rank: | 1B.2 |
Global Rank: | G4T3 |
State Rank: |
S3 |
State List: | None |
Fed List: | None |
Other Status: | BLM_S; SB_UCSC |
CRPR Changes: |
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Total Occurrences: | 54 |
Element Occurrence Ranks: | |
Excellent (A) | 9 |
Good (B) | 14 |
Fair (C) | 4 |
Poor (D) | 1 |
None (X) | 0 |
Unknown (U) | 26 |
California Endemic: True | |
California Counties and Islands: Name (Code) | |
Colusa (COL), Glenn (GLE), Lake (LAK), Napa (NAP), San Benito (SBT), Sonoma (SON), Tehama (TEH), Yolo (YOL) | |
Quads: Name (Quad Code) | |
Chrome (3912265), Cold Fork (4012226), Detert Reservoir (3812265), Gilmore Peak (3912235), Glascock Mtn. (3812283), Hall Ridge (3912276), Hough Springs (3912225), Idria (3612046), Jericho Valley (3812274), Knoxville (3812273), Leesville (3912224), Lower Lake (3812285), Lowrey (4012215), Middletown (3812275), Mount St. Helena (3812266), Newville (3912275), Paskenta (3912285), Salt Canyon (3912213), St. John Mtn. (3912246), Stonyford (3912245), Walter Springs (3812263), Whispering Pines (3812276), Wilbur Springs (3912214), Wilson Valley (3812284) |
Threat List Total: | 8 | |
EOs with Threat Listed: | Total EOs | % of EOs |
14 | 26 % | |
Non-native plant impacts | 7 | 12% |
Road/trail construction/maint. | 7 | 12% |
Foot traffic/trampling | 3 | 5% |
ORV activity | 3 | 5% |
Development | 2 | 3% |
Erosion/runoff | 2 | 3% |
Recreational use (non-ORV) | 1 | 1% |
Vandalism/dumping/litter | 1 | 1% |
Aliso 4:137 (1958) |
Memoirs of the New York Botanical Garden 13:1052 (1964) |
Astragalus rattanii var. jepsonianus profile for potential Species of Conservation Concern evaluation (2018) |
Systematic Botany 17(3):367-379 (1992) for distributional information |