CNPS Inventory Plant Detail

Arctostaphylos hookeri ssp. hearstiorum

Common Name:	Hearst's manzanita
Family:	Ericaceae
Synonyms:	Arctostaphylos hearstiorum
Element Code:	PDERI040J4
Full Name:	Arctostaphylos hookeri D. Don ssp. hearstiorum (Hoov. & Roof) Wells
USDA PLANTS Symbol:	ARHOH

Biology
Lifeform: perennial evergreen shrub Blooming Period: February - April Habitat: sandy. • Chaparral (maritime) • Coastal prairie • Coastal scrub • Valley and foothill grassland

Rarity Status
CA 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: CE Endangered (09/79) State Rank: S2 S2: Imperiled. Global Rank: G3T2 T2: Imperiled. G3: (species) Vulnerable.

Occurrence Data from DFG
California Natural Diversity Database

Historic >20 yrs	Recent <=20 yrs
5	0

Presence:

Present Extant	Possibly Extirpated	Extirpated
5	0	0

Notes

Known from five occurrences in the Arroyo de la Cruz area; need current status information. Threatened by grazing and rangeland conversion. See Four Seasons 2(1):2 (1966) for original description, and Madroño 19:200 (1968) 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: 1974-01-01
Last Update: 2012-03-13

Location

Elevation: 55 - 200 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
San Luis Obispo (SLO)

Quads: name (DWR code) USGS code
San Simeon (271B) 35121F2, Piedras Blancas (272A) 35121F3

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 .

-121.125,35.625