DISTRIBUTION AND OCCURRENCE
SPECIES: Arbutus menziesii | Pacific Madrone 



GENERAL DISTRIBUTION : 
Pacific madrone occupies coastal lowlands from Vancouver Island, British
Columbia, southward to the Coast Ranges of southern California and
occurs in isolated groves as far south as Mexico [16,37,44,52].  Pacific
madrone is particularly common west of the Cascades in Washington and
Oregon [2].  Along the western slope of the Sierra Nevada, Pacific
madrone has a scattered distribution, extending southward to central
California [16,37].


ECOSYSTEMS : 
   FRES20  Douglas-fir
   FRES21  Ponderosa pine
   FRES23  Fir - spruce
   FRES26  Lodgepole pine
   FRES27  Redwood
   FRES28  Western hardwoods
   FRES34  Chaparral - mountain shrub


STATES : 
     CA  OR  WA  BC  MEXICO


ADMINISTRATIVE UNITS : 
     CHIS  CRLA  GUMO  MORA  OLYM  PORE
     REDW  SAJH  WHIS


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


KUCHLER PLANT ASSOCIATIONS : 
   K002  Cedar - hemlock - Douglas-fir forest
   K005  Mixed conifer forest
   K006  Redwood forest
   K026  Oregon oakwoods
   K028  Mosaic of K002 and K026
   K029  California mixed evergreen forest
   K030  California oakwoods 
   K033  Chaparral
   K034  Montane chaparral


SAF COVER TYPES : 
   229  Pacific Douglas-fir
   230  Douglas-fir - western hemlock
   231  Port Orford-cedar
   232  Redwood
   233  Oregon white oak
   234  Douglas-fir - tanoak - Pacific madrone
   243  Sierra Nevada mixed conifer
   244  Pacific ponderosa pine - Douglas-fir
   245  Pacific ponderosa pine
   246  California black oak
   248  Knobcone pine
   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 : 
Pacific madrone is a seral component of a number of forested, woodland,
and chaparral communities [9,18,54].  Within mixed-evergreen forests,
madrone often codominates the hardwood subcanopy with canyon live oak
(Quercus chrysolepis) [49,54].

Published classifications listing Pacific madrone as a dominant part of
the vegetation in community types or plant associations are presented
below.

Area                    Classification         Authority

OR, WA                  gen veg cts            Franklin & Dyrness 1973

OR: Umpqua River Basin  gen veg pas            Smith 1985

s. CA                   gen veg pas            Paysen & others 1980

Related categories for Species: Arbutus menziesii | Pacific Madrone