Taxon Report

Arctostaphylos viridissima (Eastw.) McMinn

white-haired manzanita

Print Report

Classification


Scientific Name:	Arctostaphylos viridissima (Eastw.) McMinn
Common Name:	white-haired manzanita
Family:	Ericaceae
Element Code:	PDERI041L0
USDA Plants Symbol:	ARVI7
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial evergreen shrub
Blooming Period: May-Mar	May-Mar
Elevation:	100-500 (330-1640)
General Habitats:	Chaparral, Closed-cone coniferous forest
Microhabitat:	Rocky, Shale (usually)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G4
State Rank:	S4
State List:	None
Fed List:	None
Other Status:	SB_SBBG
CRPR Changes:

Occurrence Data from the CNDDB


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

Location


California Endemic: True
California Counties and Islands: Name (Code)
Santa Barbara (SBA)
Quads: Name (Quad Code)
Santa Cruz Island B (3311986), Santa Cruz Island C (3311985), Santa Cruz Island D (3311984)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes



Possibly threatened by feral herbivores. Mainland occurrences of A. viridissima may be erroneous. See Leaflets of Western Botany 1:62 (1933) for original description, and Illustrated Manual of California Shrubs, p. 419 (1939) by H. McMinn 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 7 January 2025].