Taxon Report
Pediomelum castoreum (Wats.) Rydb.Beaver Dam breadroot |
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Species Description:
Pediomelum castoreum, commonly known as Beaver Dam breadroot, is a perennial herb in the Fabaceae that is found in California and elsewhere. It occurs within Joshua tree "woodland", and Mojavean desert scrub, growing at elevations from 610 to 1525 meters. Pediomelum castoreum is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.
Classification
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Scientific Name: |
Pediomelum castoreum (Wats.) Rydb. |
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Common Name: |
Beaver Dam breadroot |
| Family: | Fabaceae |
| Element Code: | PDFAB5L050 |
| USDA Plants Symbol: | PECA24 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Apr-May | Apr-May |
| Elevation: | 610-1525 (2000-5005) |
| General Habitats: | Joshua tree "woodland", Mojavean desert scrub |
| Microhabitat: | Roadsides, Sandy, Washes |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G3 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 26 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 2 |
| Poor (D) | 3 |
| None (X) | 0 |
| Unknown (U) | 21 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Inyo (INY), San Bernardino (SBD) | |
| Quads: Name (Quad Code) | |
| Astley Rancho (3411774), Barstow (3411781), Barstow SE (3411771), East of Kingston Peak (3511567), East of Kingston Spring (3511557), Emigrant Canyon (3611742), Helendale (3411763), Hodge (3411772), Kingston Peak (3511568), Kingston Spring (3511558), Kramer Hills (3411784), Lake Arrowhead (3411732), Lane Mountain (3511618), Minneola (3411677), Mud Hills (3511711), Nebo (3411688), Silverwood Lake (3411733), Stoddard Well (3411761), Victorville (3411753), Victorville NW (3411764), Water Valley (3511712), West Ord Mountain (3411668), White Horse Mtn. (3411658), Wild Crossing (3411773), Yermo (3411687) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | % | |
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Notes
| Possibly threatened by vehicles and road widening. On watch list in NV. See Proceedings of the American Academy of Arts and Sciences 14:291 (1879) for original description, North American Flora 24(1):22 (1919) for revised nomenclature, and Memoirs of the New York Botanical Garden 61:84-85 (1990) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
Selected References
| CRPR List Change on 2011-06-29 |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 22 January 2025].