Species Details

Ceanothus ophiochilus

Vail Lake ceanothus

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Scientific Name:
Ceanothus ophiochilus Boyd, Ross & Arnseth
Common Name:
Vail Lake ceanothus
Family: Rhamnaceae
Element Code: PDRHA041M0
USDA Plants Symbol: CEOP
Synonyms/Other Names:
CA Rare Plant Rank: 1B.1
Fed List: FT (1998-10-13)
State List: CE (1994-01-01)
Global Rank: G1
State Rank:
S1
Other Status: SB_CalBG/RSABG
CRPR Changes:
Add Date: 1994-01-01
Date Edited: 2021-05-26
Lifeform: perennial evergreen shrub
Blooming Period: Feb-Mar
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Elevation:
580 - 1065 meters
1905 - 3495 feet
General Habitats:
  • Chaparral (gabbroic, pyroxenite-rich outcrops)
Microhabitat Details:
Microhabitat:
Notes:
Known from only three occurrences near Vail Lake; first discovered in 1989. Threatened by proposed development, alteration of fire regimes, firebreak construction, and long-term hybridization with C. crassifolius. See Phytologia 70(1):28-41 (1991) for original description.
Threats:
Taxonomy:
Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 3 100 %
THREAT LIST:
Road/trail construction/maint. 3 100%
Hybridization 2 66%
Non-native plant impacts 2 66%
Development 1 33%
Improper burning regime 1 33%
Total Occurrences: 3
Element Occurrence Ranks:
A B C D X U
1 2 0 0 0 0
Occurrence Status:
Historical >20 Years 1
Recent <=20 Years 2
Presence:
Presumed Extant 3
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Riverside (RIV)
Quads: Name (Quad Code)
Pechanga (3311741), Vail Lake (3311648)
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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