Taxon Report
Euphorbia abramsiana L.C. WheelerAbrams' spurge |
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Classification
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Scientific Name: |
Euphorbia abramsiana L.C. Wheeler |
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Common Name: |
Abrams' spurge |
| Family: | Euphorbiaceae |
| Element Code: | PDEUP0D010 |
| USDA Plants Symbol: | |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: (Aug)Sep-Nov | (Aug)Sep-Nov |
| Elevation: | -5-1310 (-15-4300) |
| General Habitats: | Mojavean desert scrub, Sonoran desert scrub |
| Microhabitat: | Sandy |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 2B.2 |
| Global Rank: | G4 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 109 |
| Element Occurrence Ranks: | |
| Excellent (A) | 9 |
| Good (B) | 31 |
| Fair (C) | 34 |
| Poor (D) | 10 |
| None (X) | 1 |
| Unknown (U) | 24 |
| California Endemic: False | |
| 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) | |
Threat List Data from the CNDDB
| Threat List Total: | 8 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 67 | 61 % | |
| ORV activity | 37 | 33% |
| Development | 35 | 32% |
| Road/trail construction/maint. | 16 | 14% |
| Non-native plant impacts | 11 | 10% |
| Mining | 6 | 5% |
| Foot traffic/trampling | 3 | 2% |
| Grazing | 1 | 0% |
| Agriculture | 1 | 0% |
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, Madroño 32(3):188 (1985) for alternative nomenclature, and Taxon 55:397-420 (2006) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 26 December 2024].