Species Details

Arctostaphylos montana ssp. montana

Mt. Tamalpais manzanita

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Photo of Arctostaphylos montana ssp. montana
© 2018 John Doyen
Photo of Arctostaphylos montana ssp. montana
© 2018 John Doyen
Photo of Arctostaphylos montana ssp. montana
© 2012 Aaron Arthur
Lifeform: perennial evergreen shrub
Blooming Period: Feb-Apr
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Elevation:
160 - 760 meters
525 - 2495 feet
General Habitats:
  • Chaparral
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Rocky
  • Serpentine
Notes:
See Proceedings of the California Academy of Sciences 1:83 (1897) for original description, and MadroƱo 19(6):200 (1968) for revised nomenclature.
Threats:
Taxonomy:
Threat List Total: 3
Total EOs % of EOs
EOs with Threat Listed: 1 7 %
THREAT LIST:
Improper burning regime 1 6%
Non-native plant impacts 1 6%
Road/trail construction/maint. 1 6%
Total Occurrences: 15
Element Occurrence Ranks:
A B C D X U
0 1 0 0 0 14
Occurrence Status:
Historical >20 Years 13
Recent <=20 Years 2
Presence:
Presumed Extant 15
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), Novato (3812215)?, 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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