DISTRIBUTION AND OCCURRENCE
SPECIES: Spiraea betulifolia | White Spirea 



GENERAL DISTRIBUTION : 
White spirea is generally confined to the middle elevation foothills
and montane zones of the Intermountain West [19,23,32,40].  In the
western United States, this species ranges from southern Idaho, north
through eastern Oregon and Washington, and east to north-central
Wyoming.  White spirea also occurs in western Montana and in the Black
Hills of South Dakota [14,15,19,23,32,40].  In Canada, white spirea
occurs in southern British Columbia, southern Saskatchewan, and eastern
Alberta [14,19].


ECOSYSTEMS : 
   FRES20  Douglas-fir
   FRES21  Ponderosa pine
   FRES23  Fir - spruce
   FRES26  Lodgepole pine
   FRES29  Sagebrush
   FRES36  Mountain grasslands


STATES : 
     ID  MT  OR  SD  WA  WY  AB  BC  SK


ADMINISTRATIVE UNITS : 
     BIHO  GLAC  GRTE  MORA  MORU  NOCA
     OLYM  YELL


BLM PHYSIOGRAPHIC REGIONS : 
    5  Columbia Plateau
    8  Northern Rocky Mountains
    9  Middle Rocky Mountains
   15  Black Hills Uplift


KUCHLER PLANT ASSOCIATIONS : 
   K008  Lodgepole pine - subalpine forest
   K011  Western ponderosa forest
   K012  Douglas-fir forest
   K015  Western spruce - fir forest
   K055  Sagebrush steppe
   K063  Foothills prairie


SAF COVER TYPES : 
   206  Engelmann spruce
   210  Interior Douglas-fir
   213  Grand fir
   218  Lodgepole pine
   237  Interior ponderosa pine


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
White spirea is a dominant shrub species occurring mostly in
forested communities of low to moderate precipitation.  Habitat types
that include white spirea as an indicator species are the Douglas-fir 
(Pseudotsuga menziesii), subalpine fir (Abies lasiocarpa), grand fir 
(A. grandis), ponderosa pine (Pinus ponderosa), and lodgepole pine 
(P. contorta) climax series [7,20,27,30,36].  White spirea is also found
in many moist community types and plant associations [3,10,11].

Publications listing white spirea as an indicator or dominant species in
habitat types (hts), community types (cts), or plant associations (pas)
are listed below:

Area             Classification         Authority             

  MT              forest hts             Pfister & others 1977
n ID              forest hts             Cooper & others  1991
c ID              forest hts             Steele & others  1981
n WY              forest hts             Hoffman & Alexander 1976
w WY              forest hts             Steele & others  1981
s ID, w WY        forest cts             Mueggler & Campbell 1982
e ID, w WY        forest cts             Steele & others  1983

Related categories for Species: Spiraea betulifolia | White Spirea