Pediomelum castoreum
Common Name: Beaver Dam breadroot
Family: Fabaceae
Element Code: PDFAB5L050
Full Name: Pediomelum castoreum (Wats.) Rydb.

2005 James M. Andre
Biology Glossary
Rarity Status Glossary
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 23
  • Element Occurrence Ranks:
    A B C D X U
    0 0 0 3 0 20
  • Population Status:
    >20 yrs
    <=20 yrs
    16 7
  • Presence:
    Present Extant Possibly Extirpated Extirpated
    23 0 0
Notes Glossary
  • 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.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 2001-01-01
  • Last Update: 2011-09-08
Location Glossary
  • Elevation: 610 - 1525 meters
  • California Endemic: no
  • States: California, Arizona, Nevada
  • California Counties and Islands:   name (code)
    San Bernardino (SBD)
  • Quads:   name (DWR code) USGS code
    Lake Arrowhead (132C) 34117C2,  West Ord Mountain (156B) 34116F8,  Stoddard Well (157A) 34117F1,  Victorville NW (158B) 34117F4,  Victorville (158D) 34117E3,  Yermo (181A) 34116H7,  Nebo (181B) 34116H8,  Daggett (181C) 34116G8,  Minneola (181D) 34116G7,  Barstow (182A) 34117H1,  Hodge (182C) 34117G2,  Barstow SE (182D) 34117G1,  Kramer Hills (183B) 34117H4,  Astley Rancho (183C) 34117G4,  Wild Crossing (183D) 34117G3,  Water Valley (207C) 35117A2,  Mud Hills (207D) 35117A1,  Kingston Peak (250B) 35115F8,  Silurian Lake (251C) 35116E2
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable.
Presumed Extant Presumed Extirpated or Unknown 1994
Links to Leading Resources of Taxon Information
Suggested Citation
CNPS, Rare Plant Program. . Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. Website [accessed ].

34117C2=Lake Arrowhead (132C) 34117C2;34116F8=West Ord Mountain (156B) 34116F8;34117F1=Stoddard Well (157A) 34117F1;34117F4=Victorville NW (158B) 34117F4;34117E3=Victorville (158D) 34117E3;34116H7=Yermo (181A) 34116H7;34116H8=Nebo (181B) 34116H8;34116G8=Daggett (181C) 34116G8;34116G7=Minneola (181D) 34116G7;34117H1=Barstow (182A) 34117H1;34117G2=Hodge (182C) 34117G2;34117G1=Barstow SE (182D) 34117G1;34117H4=Kramer Hills (183B) 34117H4;34117G4=Astley Rancho (183C) 34117G4;34117G3=Wild Crossing (183D) 34117G3;35117A2=Water Valley (207C) 35117A2;35117A1=Mud Hills (207D) 35117A1;35115F8=Kingston Peak (250B) 35115F8;35116E2=Silurian Lake (251C) 35116E2