Species Details

Quercus cedrosensis

Cedros Island oak

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Scientific Name:
Quercus cedrosensis C.H. Muller
Common Name:
Cedros Island oak
Family: Fagaceae
Element Code: PDFAG05650
USDA Plants Symbol: QUCE2
Synonyms/Other Names:
Lifeform: perennial evergreen tree
Blooming Period: Apr-May
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Elevation:
255 - 960 meters
835 - 3150 feet
General Habitats:
  • Closed-cone coniferous forest
  • Chaparral
  • Coastal scrub
Microhabitat Details:
Microhabitat:
Notes:
Known in CA from fewer than ten occurrences near Otay Mtn. Possibly threatened by road construction and Border Patrol activities. Not in The Jepson Manual. See Madroño 16(6):188 (1962) for original description.
Threats:
Taxonomy:
Threat List Total: 3
Total EOs % of EOs
EOs with Threat Listed: 3 33 %
THREAT LIST:
Other 2 22%
Road/trail construction/maint. 2 22%
Improper burning regime 1 11%
Total Occurrences: 9
Element Occurrence Ranks:
A B C D X U
3 0 0 0 0 6
Occurrence Status:
Historical >20 Years 5
Recent <=20 Years 4
Presence:
Presumed Extant 9
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Baja California (BA), California (CA)
California Counties and Islands: Name (Code)
San Diego (SDG)
Quads: Name (Quad Code)
Dulzura (3211667), Otay Mountain (3211657), San Vicente Reservoir (3211688), Tecate (3211656)
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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