Species Details

Quercus parvula var. tamalpaisensis

Tamalpais oak

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Scientific Name:
Quercus parvula Greene var. tamalpaisensis S.K. Langer
Common Name:
Tamalpais oak
Family: Fagaceae
Element Code: PDFAG051Q3
USDA Plants Symbol: QUPAT
Synonyms/Other Names:
Lifeform: perennial evergreen shrub
Blooming Period: Mar-Apr
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Elevation:
100 - 750 meters
330 - 2460 feet
General Habitats:
  • Lower montane coniferous forest
Microhabitat Details:
Microhabitat:
Notes:
Known only from Mt. Tamalpais. May hybridize with Q. wislizeni var. frutescens. Not in The Jepson Manual. See Four Seasons 9(3):21-30 (1993) for original description.
Threats:
Taxonomy:
Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 3 15 %
THREAT LIST:
Road/trail construction/maint. 2 10%
Wood cutting or brush clearing 1 5%
Foot traffic/trampling 1 5%
Improper burning regime 1 5%
Other 1 5%
Total Occurrences: 20
Element Occurrence Ranks:
A B C D X U
0 2 0 1 0 17
Occurrence Status:
Historical >20 Years 12
Recent <=20 Years 8
Presence:
Presumed Extant 20
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Marin (MRN)
Quads: Name (Quad Code)
Bolinas (3712286), San Geronimo (3812216), San Rafael (3712285)
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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