Taxon Report

Arctostaphylos montana Eastw. ssp. montana

Mt. Tamalpais manzanita

Print Report

© 2018 John Doyen

Classification


Scientific Name:	Arctostaphylos montana Eastw. ssp. montana
Common Name:	Mt. Tamalpais manzanita
Family:	Ericaceae
Element Code:	PDERI040J5
USDA Plants Symbol:
Synonyms/Other Names:	Arctostaphylos montana Eastw. Arctostaphylos hookeri ssp. montana

Ecology and Life History


Lifeform:	perennial evergreen shrub
Blooming Period: Feb-Apr	Feb-Apr
Elevation:	160-760 (525-2495)
General Habitats:	Chaparral, Valley and foothill grassland
Microhabitat:	Rocky, Serpentine
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.3
Global Rank:	G3T3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:	SB_UCBG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	15
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	1
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	14

Location


California Endemic: True
California Counties and Islands: Name (Code)
Marin (MRN)
Quads: Name (Quad Code)
Bolinas (3712286), Novato (3812215)?, San Geronimo (3812216), San Rafael (3712285)

Threat List Data from the CNDDB


Threat List Total:	3
EOs with Threat Listed:	Total EOs	% of EOs
	1	7 %
Improper burning regime	1	6%
Non-native plant impacts	1	6%
Road/trail construction/maint.	1	6%

Notes



See Proceedings of the California Academy of Sciences 1:83 (1897) for original description, and Madroño 19(6):200 (1968) for revised nomenclature.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 8 January 2025].