Species Details

Astragalus webberi

Webber's milk-vetch

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Lifeform: perennial herb
Blooming Period: May-Jul
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Elevation:
731 - 1250 meters
2400 - 4100 feet
General Habitats:
  • Broadleafed upland forest
  • Lower montane coniferous forest
  • Meadows and seeps
Microhabitat Details:
Microhabitat:
Notes:
Undocumented in SIE Co.; need quads. Threatened by illegal dumping, mining, non-native plants, road construction, road maintenance, and vehicles. See Botany of California 1:154 (1876) for original description.
Threats:
Taxonomy:
Threat List Total: 9
Total EOs % of EOs
EOs with Threat Listed: 10 83 %
THREAT LIST:
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%
Total Occurrences: 12
Element Occurrence Ranks:
A B C D X U
0 5 3 1 1 2
Occurrence Status:
Historical >20 Years 6
Recent <=20 Years 6
Presence:
Presumed Extant 11
Possibly Extirpated 1
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Plumas (PLU)
Quads: Name (Quad Code)
Caribou (4012112), Crescent Mills (4012018), Taylorsville (4012017), Twain (4012111)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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