CNPS Inventory Plant Detail

Arctostaphylos manzanita ssp. laevigata

Common Name:	Contra Costa manzanita
Family:	Ericaceae
Synonyms:	Arctostaphylos pungens ssp. laevigata
Element Code:	PDERI04273
Full Name:	Arctostaphylos manzanita Parry ssp. laevigata (Eastw.) Munz
USDA PLANTS Symbol:	ARMAL

Biology
Lifeform: perennial evergreen shrub Blooming Period: January - April Habitat: • Chaparral (rocky)

Rarity Status
Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S2 S2: Imperiled. Global Rank: G5T2 T2: Imperiled. G5: (species) Secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Historic >20 yrs	Recent <=20 yrs
5	3

Presence:

Present Extant	Possibly Extirpated	Extirpated
8	0	0

Notes
Threatened by road maintenance. Possibly threatened by fire suppression. See Leaflets of Western Botany 1:76 (1933) for original description, and Aliso 4(1):95 (1954) for revised nomenclature. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 1984-01-01 Last Update: 2012-06-15

Location

Elevation: 500 - 1100 meters

California Endemic: yes

States: California

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

Quads: name (DWR code) USGS code
Antioch South (464A) 37121H7, Clayton (464B) 37121H8, Diablo (464C) 37121G8, Tassajara (464D) 37121G7

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 Wildlife: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society. Sacramento, CA. Accessed on .

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