Species Details

Euphorbia abramsiana

Abrams' spurge

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CA Rare Plant Rank: 2B.2
Fed List: None
State List: None
Global Rank: G4
State Rank:
S2
Other Status: SB_CalBG/RSABG
CRPR Changes:
changed from 2.2 to 2B.2 on 2013-06-12
Add Date: 2001-01-01
Date Edited: 2021-12-09
Lifeform: annual herb
Blooming Period: (Aug)Sep-Nov
JFMAMJJASOND
Elevation:
-5 - 1310 meters
-15 - 4300 feet
General Habitats:
  • Mojavean desert scrub
  • Sonoran desert scrub
Microhabitat Details:
Microhabitat:
  • Sandy
Notes:
Threatened by vehicles, solar energy development, and non-native plants. See Bulletin of the Southern California Academy of Sciences 33:109 (1934) for original description, MadroƱo 32(3):188 (1985) for alternative nomenclature, and Taxon 55:397-420 (2006) for taxonomic treatment.
Threats:
Taxonomy:
Threat List Total: 8
Total EOs % of EOs
EOs with Threat Listed: 67 61 %
THREAT LIST:
ORV activity 37 33%
Development 35 32%
Road/trail construction/maint. 16 14%
Non-native plant impacts 11 10%
Mining 6 5%
Total Occurrences: 109
Element Occurrence Ranks:
A B C D X U
9 31 34 10 1 24
Occurrence Status:
Historical >20 Years 9
Recent <=20 Years 100
Presence:
Presumed Extant 108
Possibly Extirpated 1
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Arizona (AZ), Baja California (BA), California (CA), Nevada (NV), Sonora, Mexico (SO)
California Counties and Islands: Name (Code)
Imperial (IMP), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)
Quads: Name (Quad Code)
Bonds Corner (3211563), Alpine (3211677), Amos (3311513), Augustine Pass (3311543), Blind Hills (3411573), Blythe NE (3311465), Borrego Mountain SE (3311611), Brawley (3211585), Cadiz Valley SW (3411514), Calexico (3211564), Carrizo Mtn. (3211671), Castle Peaks (3511532), Cibola (3311436), Clark Lake (3311633), Colton Well (3411584), Coyote Wells (3211568), Cross Roads (3411422), Desert Spring (3411583), Earthquake Valley (3311614), East of Dale Lake (3411525), Ford Dry Lake (3311561), Fountain Peak (3411585), Goffs (3411581), Hackberry Mountain (3511512), Harpers Well (3311518), Hart Peak (3511531), Hayfield (3311566), Hayfield Spring (3311565), Heber (3211565), Homer (3411488), Homer Mtn. (3511418), Hopkins Well (3311458), Humbug Mountain (3411517), Inca (3311477), Kane Spring NW (3311528), McCoy Peak (3311467), McCoy Spring (3311468), Monument Peak (3211684), Myoma (3311673), Parker SW (3411414), Rancho Mirage (3311664), Rice (3411417), Ripley (3311456), Roosevelt Mine (3311457), San Bernardino Wash (3311586), Shell Reef (3311621), Signal Hill (3511511), Sweeney Pass (3211672), Thumb Peak (3311447), Toro Peak (3311654), Tortuga (3311523), Valley Wells (3511546), Van Winkle Spring (3411575)
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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