DISTRIBUTION AND OCCURRENCE
SPECIES: Arctostaphylos viscida | Whiteleaf Manzanita 



GENERAL DISTRIBUTION : 
Whiteleaf manzanita occurs in California and Oregon.  It is found in the
foothills of the Sierra Nevada from Kern County north to Butte County,
California, and in the North Coast Ranges, Klamath Ranges, and Siskiyou
Mountains from Lake County, California north to Josephine County, Oregon
[13,36,37].


ECOSYSTEMS : 
   FRES20  Douglas-fir
   FRES21  Ponderosa pine
   FRES27  Redwood
   FRES28  Western hardwoods
   FRES34  Chaparral - mountain shrub


STATES : 
     CA  OR


ADMINISTRATIVE UNITS : 
     REDW  WHIS  YOSE


BLM PHYSIOGRAPHIC REGIONS : 
   1  Northern Pacific Border
   3  Southern Pacific Border
   4  Sierra Mountains


KUCHLER PLANT ASSOCIATIONS : 
   KOO5  Mixed Conifer forest
   KOO6  Redwood forest
   KO10  Ponderosa shrub forest
   KO29  California mixed evergreen forest
   KO30  California oakwoods
   KO33  Chaparral
   KO34  Montane chaparral
   K037  Mountain-mahogany - oak scrub


SAF COVER TYPES : 
   299  Pacific Douglas-fir
   232  Redwood
   233  Oregon white oak
   234  Douglas-fir - tanoak - Pacific madrone
   244  Sierra Nevada mixed conifer
   245  Pacific ponderosa pine - Douglas-fir
   246  California black oak
   249  Canyon live oak
   250  Blue oak - Digger pine
   255  California coast live oak


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Whiteleaf manzanita is a dominant or codominant chaparral species.
Common codominants include chamise (Adenostoma fasciculatum), Ceanothus
spp., hoary manzanita (Arctostaphylos canescens), greenleaf manzanita
(A. patula), and Eastwood manzanita (A. glandulosa) [14,18,23].

Other associated species include birchleaf mountain-mahogany (Cerocarpus
betuloides), toyon (Heteromeles arbutifolia), California rose (Rosa
californica), and Sierra mountain misery (Chamaebatia foliosa) [9,28,38].

The following published classification schemes list whiteleaf manzanita
as a climax or indicator species:

California chaparral [22]
Preliminary descriptions of the terrestrial natural communities of
  California [23]
Forest plants of the Eastern Siskiyous: their environment and
vegetational distribution [48]

Related categories for Species: Arctostaphylos viscida | Whiteleaf Manzanita