Species Details

Euphorbia ocellata ssp. rattanii

Stony Creek spurge

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Scientific Name:
Euphorbia ocellata Durand & Hilg. ssp. rattanii (S. Watson) Oudejans
Common Name:
Stony Creek spurge
Family: Euphorbiaceae
Element Code: PDEUP0D1P1
USDA Plants Symbol:
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: May-Oct
Elevation:
65 - 800 meters
215 - 2625 feet
General Habitat:
  • Chaparral
  • Riparian scrub (streambanks)
  • Valley and foothill grassland (sandy, rocky)
General Micro Habitat:
Micro Habitat:
Notes:
Threatened by foot trampling, recreational activities, and vehicles. Can be confused with ssp. ocellata. See Proceedings of the American Academy of Arts and Sciences 20:372 (1885) for original description, Phytologia 67(1):47 (1989) for revised nomenclature, and Taxon 55:397-420 (2006) for taxonomic treatment.
Threats:
Taxonomy:
Other:
Total Occurrences: 39
Element Occurrence Ranks:
A B C D X U
1 4 0 0 0 34
Occurrence Status:
Historical >20 Years 31
Recent <=20 Years 8
Presence:
Presumed Extant 39
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Glenn (GLE), Tehama (TEH)
Quads: Name (Quad Code)
Black Butte Dam (3912273), Chrome (3912265), Cold Fork (4012226), Corning (3912282), Elk Creek (3912255), Gerber (4012212), Hall Ridge (3912276), Henleyville (3912283), Inskip Hill (4012138), Kirkwood (3912272), Los Molinos (4012211), Lowrey (4012215), Newville (3912275), Paskenta (3912285), Raglin Ridge (4012216), Sehorn Creek (3912274), Stonyford (3912245)
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