Taxon Report

Arctostaphylos bakeri Eastw. ssp. bakeri

Baker's manzanita

Print Report

Taxon Summary

Arctostaphylos bakeri ssp. bakeri, commonly known as Baker's manzanita, is a perennial evergreen shrub in the Ericaceae that is found only in California. It occurs within Broadleafed upland forest, and Chaparral, growing at elevations from 75 to 300 meters. Arctostaphylos bakeri ssp. bakeri is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Arctostaphylos bakeri Eastw. ssp. bakeri
Common Name:	Baker's manzanita
Family:	Ericaceae
Element Code:	PDERI04221
USDA Plants Symbol:	ARBAB
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial evergreen shrub
Blooming Period: Feb-Apr	Feb-Apr
Elevation:	75-300 (245-985)
General Habitats:	Broadleafed upland forest, Chaparral
Microhabitat:	Serpentine (often)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G2T1
State Rank:	S1
State List:	CR
Fed List:	None
Other Status:	SB_UCSC
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	3
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	2
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	1

Location


California Endemic: True
California Counties and Islands: Name (Code)
Sonoma (SON)
Quads: Name (Quad Code)
Camp Meeker (3812248), Duncans Mills (3812341)

Threat List Data from the CNDDB


Threat List Total:	5
EOs with Threat Listed:	Total EOs	% of EOs
	2	67 %
Development	2	66%
Non-native plant impacts	2	66%
Road/trail construction/maint.	2	66%
Vandalism/dumping/litter	1	33%
Grazing	1	33%

Notes



Known from fewer than ten occurrences. Threatened by development, road construction and widening, non-native plants, and dumping. See Leaflets of Western Botany 1:115 (1934) for original description.
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 5 February 2025].