CNPS Inventory Plant Detail

Arctostaphylos pallida

Common Name:	pallid manzanita
Family:	Ericaceae
Synonyms:
Element Code:	PDERI04110
Full Name:	Arctostaphylos pallida Eastw.
USDA PLANTS Symbol:	ARPA21

Biology
Lifeform: perennial evergreen shrub Blooming Period: December - March Habitat: siliceous shale, sandy or gravelly. • Broadleafed upland forest • Closed-cone coniferous forest • Chaparral • Cismontane woodland • Coastal scrub

Rarity Status
CA Rare Plant Rank: 1B.1 Rare, threatened, or endangered in California and elsewhere .1: Seriously endangered in California Federal Listing Status: FT Threatened (04/22/98) State Listing Status: CE Endangered (11/79) State Rank: S1 S1: Critically Imperiled. Global Rank: G1 G1: Critically Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Historic >20 yrs	Recent <=20 yrs
1	8

Presence:

Present Extant	Possibly Extirpated	Extirpated
8	1	0

Notes

Known from fewer than 10 occurrences in the Contra Costa Hills of the Diablo Range. Threatened by alteration of fire regimes, non-native plants, and road construction, and possibly by development, fungal infection, and hybridization. Plants from 465B are introduced. See Leaflets of Western Botany 1:76 (1933) for original description, and Four Seasons 7(4):28-46 (1987) for ecological assessment.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1974-01-01
Last Update: 2010-03-15

Location

Elevation: 185 - 465 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Alameda (ALA), Contra Costa (CCA)

Quads: name (DWR code) USGS code
Briones Valley (465B) 37122H2, Oakland East (465C) 37122G2, Richmond (466A) 37122H3

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-122.125,37.875