DISTRIBUTION AND OCCURRENCE
SPECIES: Pinus edulis | Colorado Pinyon 



GENERAL DISTRIBUTION : 
Colorado pinyon is primarily a species of the Colorado Plateau and the
headwaters of the Rio Grande, but its range extends to the eastern edge
of the Great Basin.  Colorado pinyon is distributed from southwestern
Wyoming south through western Colorado, Arizona, and New Mexico and into
the Mexican states of Sonora and Chihuahua.  Eastern outliers occur in
the extreme western tip of Oklahoma and Trans-Pecos Texas.  Its range is
sympatric with singleleaf pinyon in three areas:  the eastern Great
Basin, the canyon country of the Colorado Plateau, and the mountains
south of the Colorado Plateau [36,37,42,50].


ECOSYSTEMS : 
   FRES21  Ponderosa pine
   FRES23  Fir - spruce
   FRES29  Sagebrush
   FRES30  Desert shrub
   FRES34  Chaparral - mountain shrub
   FRES35  Pinyon - juniper
   FRES40  Desert grasslands


STATES : 
     AZ  CO  HI  NV  NM  OK  TX  UT  WY  MEXICO


ADMINISTRATIVE UNITS : 
     ARCH  BAND  BLCA  BRCA  CACH  CANY
     CARE  CACA  CEBR  CHIR  COLM  DINO
     FLFO  FOBO  GRCA  GRSA  GUMO  LAME
     MEVE  MOCA  NABR  PEFO  SUCR  WACA
     WUPA  ZION


BLM PHYSIOGRAPHIC REGIONS : 
    7  Lower Basin and Range
   10  Wyoming Basin
   11  Southern Rocky Mountains
   12  Colorado Plateau
   13  Rocky Mountain Piedmont 


KUCHLER PLANT ASSOCIATIONS : 
   K018  Pine - Douglas-fir forest
   K019  Arizona pine forest 
   K021  Southwestern spruce - fir forest
   K023  Juniper - pinyon woodland
   K037  Mountain-mahogany - oak scrub
   K038  Great Basin sagebrush
   K040  Saltbush - greasewood
   K055  Sagebrush steppe
   K057  Galleta - threeawn shrubsteppe


SAF COVER TYPES : 
   206  Engelman spruce - subalpine fir
   210  Interior Douglas-fir
   220  Rocky Mountain juniper
   237  Interior ponderosa pine
   239  Pinyon - juniper


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Self-perpetuating stands of Colorado pinyon are indicative of climax
conditions.  Numerous classification systems have used Colorado pinyon as an
indicator species within Colorado pinyon, Colorado pinyon-oneseed juniper, and
ponderosa pine-Colorado pinyon series.  Some dominant understory shrubs used
as indicator species species include black sagebrush (Artemisia nova),
big sagebrush (A. tridentata), true mountain-mahogany (Cercocarpus
montanus), and Gambel oak (Quercus gambellii).  Grass indicator species
include blue grama (Bouteloua gracilis) and bluebunch wheatgrass
(Pseudoroegneria spicata).  Publications naming Colorado pinyon as a series
indicator are listed below.

Forest vegetation of the White River National Forest in western
  Colorado: a habitat type classification. [24]
Grassland, shrubland, and forestland habitat types of the White
  River-Arapaho National Forest. [23]
A habitat type classification of the pinyon-juniper woodlands of the
  Lincoln National Forest, New Mexico. [29]
A habitat type classification system for ponderosa pine forests of
  northern Arizona. [22]
Key to the forested plant associations of northern Colorado and southern
  Wyoming. [27]
Plant associations of Region Two: potential plant communities of
  Wyoming, South Dakota, Nebraska, Colorado, and Kansas. [28]
Preliminary classification of the coniferous forest and woodland series
  of Arizona and New Mexico. [39]
Preliminary habitat types of a semiarid grassland [19]
Presettlement vegetation of part of northwest Moffat County, Colorado,
  described from remnants. [3]

Related categories for Species: Pinus edulis | Colorado Pinyon