DISTRIBUTION AND OCCURRENCE
SPECIES: Pseudotsuga menziesii var. menziesii | Coast Douglas-Fir 



GENERAL DISTRIBUTION : 
Coast Douglas-fir grows from west-central British Columbia southward to
central California.  In Oregon and Washington its range is continuous
from the Cascades west to the Pacific Ocean.  In California, it is found
in the Klamath and Coast ranges as far south as the Santa Cruz
Mountains, and in the Sierra Nevada as far south as the Yosemite Region
[31,43].  Rocky Mountain Douglas-fir occurs east of the Sierra Nevada
and Cascade Mountain Ranges.


ECOSYSTEMS : 
   FRES20  Douglas-fir
   FRES21  Ponderosa pine
   FRES23  Fir - spruce
   FRES24  Hemlock - Sitka spruce
   FRES26  Lodgepole pine
   FRES27  Redwood
   FRES28  Western hardwoods


STATES : 
     CA  HI  OR  WA  BC


ADMINISTRATIVE UNITS : 
     CODA  CRLA  LAVO  MORA  NOCA  OLYM
     PORE  REDW  SAJH  WHIS  YOSE


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


KUCHLER PLANT ASSOCIATIONS : 
   K001  Spruce - cedar - hemlock forest
   K002  Cedar - hemlock - Douglas-fir forest
   K003  Silver fir - Douglas-fir forest
   K004  Fir - hemlock forest
   K005  Mixed conifer forest
   K006  Redwood forest
   K010  Ponderosa shrub forest
   K025  Alder - ash forest
   K026  Oregon oakwoods
   K028  Mosaic of K002 and K026
   K029  California mixed evergreen forest


SAF COVER TYPES : 
   211  White fir
   213  Grand fir
   218  Lodgepole pine
   221  Red alder
   222  Black cottonwood - willow
   223  Sitka spruce
   224  Western hemlock
   225  Western hemlock - Sitka spruce
   226  Coastal true fir - hemlock
   227  Western redcedar - western hemlock
   228  Western redcedar
   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
   247  Jeffrey pine
   248  Knobcone pine
   249  Canyon live oak


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Seral coast Douglas-fir communities dominate much of the western hemlock
(Tsuga heterophylla) and Pacific silver fir (Abies amabalis) zones of
western Washington and Oregon [21].  Climax Douglas-fir forests are rare
in the northern and central Cascades, and are restricted to hot, dry
sites which commonly occur on south- or southwest-facing slopes at low
elevations [50].  Climax Douglas-fir forests increase southward from
central Oregon.  In southwestern Oregon and northern California,
Douglas-fir is a widespread climax dominant or codominant.  It is
probably the most abundant tree in the mixed-conifer zone, but its
abundance tends to decrease and that of ponderosa pine (Pinus ponderosa)
increase north to south within this zone [21].  Associates in the
mixed-conifer zone include ponderosa pine, sugar pine (P. lambertiana),
incense-cedar (Libocedrus decurrens), and white fir (Abies concolor)
[21].  In the mixed-evergreen zone, Douglas-fir dominates at climax with
tanoak (Lithocarpus densiflorus), Pacific madrone (Arbutus menziesii),
canyon live oak (Quercus chrysolepis), giant chinkapin (Castanopsis
chrysophylla), sugar pine, ponderosa pine, and incense-cedar [21,64].

Published classifications listing coast Douglas-fir as a dominant in
cover types, community types (cts), or plant associations (pas) are
listed below:

   Area                  Classification             Authority

WA: North Cascades NP  forest cover types   Agee & Kertis 1987
WA: Olympic Mtns       forest cts           Fonda & Bliss 1969
WA: Mount Rainier NP   forest cts           Franklin & others 1988
WA: Gifford Pinchot NF western hemlock pas  Topik & others 1986
WA: Gifford Pinchot NF grand fir pas        Topik 1989
OR, WA                 general veg. cts     Franklin & Dyrness 1973
OR: Willamette NF      general veg. pas     Hemstrom & others 1987
OR: Winema NF          general veg. pas     Hopkins 1979
s OR: Cascade Mtns     general veg. pas     Atzet & McCrimmon 1990
OR, CA: Siskiyou Mtns  general veg. pas     Atzet & Wheeler 1984
CA                     mixed evergreen      Sawyer & others 1977 
                       forest cts
CA                     Redwood & north      Zinke 1977
                       Coast forest cts

Related categories for Species: Pseudotsuga menziesii var. menziesii | Coast Douglas-Fir