Species Details

Euphorbia jaegeri

Orocopia Mountains spurge

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Scientific Name:
Euphorbia jaegeri V.W. Steinmann & J. AndreĀ“
Common Name:
Orocopia Mountains spurge
Family: Euphorbiaceae
Element Code: PDEUP0Q440
USDA Plants Symbol:
Synonyms/Other Names:
CA Rare Plant Rank: 1B.1
Fed List: None
State List: None
Global Rank: G1
State Rank:
S1
Other Status: BLM_S
CRPR Changes:
added to 1B.1 on 2013-01-17
Add Date: 2013-01-17
Date Edited: 2021-12-09
Lifeform: perennial shrub
Blooming Period: Oct-May
Elevation:
600 - 850 meters
1970 - 2790 feet
General Habitat:
  • Mojavean desert scrub
General Micro Habitat: Rocky hillsides and arroyos, gravelly or rocky crevices
Micro Habitat:
  • Carbonate
  • Granitic
  • Gravelly (sometimes)
  • Metamorphic
  • Rocky
Notes:
Known only from the Bristol, Marble, and Orocopia Mtns. Potentially occurs in the Coxcomb, Eagle, Iron, and Sheephole Mtns.; needs field surveys. Threatened by road maintenance and mining. Potentially threatened by wind energy development. Similar to E. polycarpa and E. setiloba (see Chamaesyce polycarpa and C. setiloba in TJM 2). Not in TJM 2. See Aliso 30:1-4 (2012) for original description.
Threats:
Taxonomy:
Other:
Total Occurrences: 4
Element Occurrence Ranks:
A B C D X U
0 1 3 0 0 0
Occurrence Status:
Historical >20 Years 1
Recent <=20 Years 3
Presence:
Presumed Extant 4
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Riverside (RIV), San Bernardino (SBD)
Quads: Name (Quad Code)
Amboy (3411556), Cadiz (3411555), East of Siberia (3411567), Hayfield (3311566), Hayfield Spring (3311565), Red Canyon (3311556)
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.

Map

Presumed Extant
Counties   Quads