DISTRIBUTION AND OCCURRENCE
SPECIES: Arctostaphylos glauca | Bigberry Manzanita 



GENERAL DISTRIBUTION : 
Bigberry manzanita is distributed from Mount Diablo in Contra Costa
County, California south through the South Coast, Transverse, and
Peninsular ranges and interior regions of the Sierra Juarez and Sierra
San Pedro Martir to central Baja California [6,37,52].


ECOSYSTEMS : 
   FRES28  Western hardwoods
   FRES34  Chaparral - mountain shrub
   FRES35  Pinyon - juniper


STATES : 
     CA  MEXICO


ADMINISTRATIVE UNITS : 
     JOTR  PINN  SAMO


BLM PHYSIOGRAPHIC REGIONS : 
    3  Southern Pacific Border


KUCHLER PLANT ASSOCIATIONS : 
   K023  Juniper - pinyon woodland
   K033  Chaparral


SAF COVER TYPES : 
   239  Pinyon - juniper
   255  California coast live oak


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Bigberry manzanita occurs in four communities of the chaparral
formation:  manzanita (Arctostaphylos spp.), chamise (Adenostoma
fasciculatum), mixed, and desert chaparral [18,20,37,52].  It is usually
not a dominant chaparral species except in mixed chaparral of the San
Gabriel and San Bernadino mountains [37].  It occasionally forms dense,
pure stands or codominates with Eastwood manzanita in manzanita
chaparral [14].

Bigberry manzanita also occurs in singleleaf pinyon (Pinus
monophylla)-Utah juniper (Juniperus osteosperma) communities bordering
the Sonora and Mojave deserts [52].

Bigberry manzanita associates by plant community are as follows:

Chamise chaparral associates include chamise, Eastwood manzanita, white
sage (Salvia apiana), black sage (S. mellifera), California buckwheat
(Eriogonum fasciculatum), California scrub oak (Quercus dumosa),
sugarbush (Rhus ovata), and laurel sumac (Malosma laurina) [40].

Mixed chaparral associates are chamise, hoaryleaf ceanothus (Ceanothus
crassifolius), chaparral whitethorn (C. leucodermis), Eastwood manzanita,
California scrub oak, and interior live oak (Q. wislizenii) [37].

Desert chaparral associates include turbinella oak (Quercus turbinella),
Dunn oak (Q. dunnii), birchleaf mountain-mahogany (Cercocarpus
betuloides), desert ceanothus (Ceanothus greggii), redberry (Rhamnus
crocea), and hollyleaf cherry (Prunus ilicifolia) [37]. 

Pinyon-juniper woodland associates are singleleaf pinyon, Utah juniper,
turbinella oak, canyon live oak (Q. chrysolepis), California buckwheat,
and narrowleaf goldenbush (Haplopappus linearifolius) [52].

Herbaceous fire-followers common to the above plant communities include
golden yarrow (Convolvulus occidentalis), common deerweed (Lotus
scoparius), foxtail brome (Bromus rubens), and cheatgrass (Bromus
tectorum) [21]. 

Publications describing plant communities dominated or codominated by
bigberry manzanita are as follows:

Vegetation and floristics of Pinnacles National Monument [12]
Chaparral [14]
Terrestrial natural communities of California [18]
Vegetation types of the San Bernadino Mountains [20]

Related categories for Species: Arctostaphylos glauca | Bigberry Manzanita