Taxon Report
Astragalus leucolobus JonesBig Bear Valley woollypod |
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Taxon Summary
Astragalus leucolobus, commonly known as Big Bear Valley woollypod, is a perennial herb in the Fabaceae that is found only in California. It occurs within Lower montane coniferous forest, Pebble (Pavement) plain, Pinyon and juniper woodland, and Upper montane coniferous forest, growing at elevations from 1100 to 2885 meters. Astragalus leucolobus is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Astragalus leucolobus Jones |
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Common Name: |
Big Bear Valley woollypod |
| Family: | Fabaceae |
| Element Code: | PDFAB0F4T0 |
| USDA Plants Symbol: | ASLE11 |
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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: | 1100-2885 (3610-9465) |
| General Habitats: | Lower montane coniferous forest, Pebble (Pavement) plain, Pinyon and juniper woodland, Upper montane coniferous forest |
| Microhabitat: | Rocky |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; IUCN_VU; SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 118 |
| Element Occurrence Ranks: | |
| Excellent (A) | 2 |
| Good (B) | 23 |
| Fair (C) | 16 |
| Poor (D) | 2 |
| None (X) | 0 |
| Unknown (U) | 75 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Los Angeles (LAX), Riverside (RIV), San Bernardino (SBD) | |
| Quads: Name (Quad Code) | |
| Big Bear City (3411637), Big Bear Lake (3411628), Butler Peak (3411731), Fawnskin (3411638), Lebec (3411877), Mescal Creek (3411746), Moonridge (3411627), Mount San Antonio (3411736)*, Onyx Peak (3411626), Rattlesnake Canyon (3411636), Toro Peak (3311654) | |
Threat List Data from the CNDDB
| Threat List Total: | 15 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 55 | 47 % | |
| Foot traffic/trampling | 19 | 16% |
| ORV activity | 19 | 16% |
| Recreational use (non-ORV) | 15 | 12% |
| Development | 11 | 9% |
| Road/trail construction/maint. | 9 | 7% |
| Mining | 8 | 6% |
| Other | 6 | 5% |
| Wood cutting or brush clearing | 4 | 3% |
| Vandalism/dumping/litter | 3 | 2% |
| Non-native animal impacts | 3 | 2% |
| Non-native plant impacts | 3 | 2% |
| Grazing | 3 | 2% |
| Logging | 2 | 1% |
| Improper burning regime | 1 | 0% |
| Erosion/runoff | 1 | 0% |
Selected References
| Proposed Rank Change from 1B.2 to 4.2 (2007) |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 24 February 2025].