Taxon Report

Arctostaphylos gabilanensis V.T. Parker & M.C. Vasey

Gabilan Mountains manzanita

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Taxon Summary

Arctostaphylos gabilanensis, commonly known as Gabilan Mountains manzanita, is a perennial evergreen shrub in the Ericaceae that is found only in California. It occurs within Chaparral, and Cismontane woodland, growing at elevations from 300 to 700 meters. Arctostaphylos gabilanensis is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Arctostaphylos gabilanensis V.T. Parker & M.C. Vasey
Common Name:	Gabilan Mountains manzanita
Family:	Ericaceae
Element Code:	PDERI042X0
USDA Plants Symbol:	ARGA5
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial evergreen shrub
Blooming Period: Jan	Jan
Elevation:	300-700 (985-2295)
General Habitats:	Chaparral, Cismontane woodland
Microhabitat:	Granitic
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G1
State Rank:	S1
State List:	None
Fed List:	None
Other Status:	SB_UCSC
CRPR Changes:	added to 1B on 2005-08-22

Occurrence Data from the CNDDB


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

Location


California Endemic: True
California Counties and Islands: Name (Code)
Monterey (MNT), San Benito (SBT)
Quads: Name (Quad Code)
Mount Johnson (3612153), Mt. Harlan (3612164)

Threat List Data from the CNDDB


Threat List Total:	1
EOs with Threat Listed:	Total EOs	% of EOs
	1	50 %
Non-native plant impacts	1	50%

Notes



Known only from two occurrences in the Gabilan Mountains. Not in The Jepson Manual. See Madroño (51)3: 322 (2004) for original description.
Threats:

Taxonomy:

Selected References

Proposed Addition to CRPR 1B, G1 / S1.2 (2005)

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 3 March 2025].