Taxon Report

Arctostaphylos andersonii Gray

Anderson's manzanita

Print Report

© 2018 Jason Matthias Mills

Classification


Scientific Name:	Arctostaphylos andersonii Gray
Common Name:	Anderson's manzanita
Family:	Ericaceae
Element Code:	PDERI04030
USDA Plants Symbol:	ARAN2
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial evergreen shrub
Blooming Period: Nov-May	Nov-May
Elevation:	60-760 (195-2495)
General Habitats:	Broadleafed upland forest, Chaparral, North Coast coniferous forest
Microhabitat:	Edges, Openings
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG; SB_UCSC
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	64
Element Occurrence Ranks:
Excellent (A)	5
Good (B)	12
Fair (C)	12
Poor (D)	6
None (X)	1
Unknown (U)	28

Location


California Endemic: True
California Counties and Islands: Name (Code)
San Mateo (SMT), Santa Clara (SCL), Santa Cruz (SCR)
Quads: Name (Quad Code)
Big Basin (3712222), Davenport (3712212), Felton (3712211), Franklin Point (3712223), La Honda (3712233), Laurel (3712118), Loma Prieta (3712117), Mt. Madonna (3712116), Santa Cruz (3612281), Soquel (3612188), Watsonville East (3612186), Watsonville West (3612187), Woodside (3712243)

Threat List Data from the CNDDB


Threat List Total:	11
EOs with Threat Listed:	Total EOs	% of EOs
	30	47 %
Other	14	21%
Road/trail construction/maint.	14	21%
Logging	11	17%
Non-native plant impacts	5	7%
Development	3	4%
Wood cutting or brush clearing	3	4%
Biocides	1	1%
Erosion/runoff	1	1%
Foot traffic/trampling	1	1%
Improper burning regime	1	1%
Recreational use (non-ORV)	1	1%

Notes



Confused with other species merged with it as varieties. Threatened by development and road maintenance. See Proceedings of the American Academy of Arts and Sciences 11:83 (1876) for original description, and North American Flora 29:98 (1914) for additional information.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].