DISTRIBUTION AND OCCURRENCE
SPECIES: Hesperostipa spartea | Porcupine Grass 



GENERAL DISTRIBUTION : 
Porcupine grass is found from British Columbia to Ontario, south through
Montana, Wyoming, Colorado, and New Mexico, and east through most of the
central states to Pennsylvania.  Western porcupine grass (S. s. var.
curtiseta) is found in Manitoba, Alberta, Montana, South Dakota, and
Wyoming.


ECOSYSTEMS : 
   FRES15  Oak - hickory
   FRES21  Ponderosa pine
   FRES29  Sagebrush
   FRES36  Mountain meadows
   FRES38  Plains grasslands
   FRES39  Prairie


STATES : 
     AZ  CO  IL  IN  IA  KS  MN  MO  MT  MI
     MN  NM  OH  OK  PA  SD  TX  WI  WY  AB
     BC  MB  NB  ON  SK


ADMINISTRATIVE UNITS : 
     DETO  INDU  PIPE  THRO  WICA


BLM PHYSIOGRAPHIC REGIONS : 
   10  Wyoming Basin
   12  Colorado Plateau
   13  Rocky Mountain Piedmont
   14  Great Plains
   15  Black Hills Uplift
   16  Upper Missouri Basin and Broken Lands


KUCHLER PLANT ASSOCIATIONS : 
   K016  Eastern ponderosa forest
   K056  Wheatgrass - needlegrass shrubsteppe
   K063  Foothills prairie
   K064  Grama - needlegrass - wheatgrass
   K066  Wheatgrass - needlegrass
   K067  Wheatgrass - bluestem - needlegrass
   K068  Wheatgrass - grama - buffalograss
   K069  Bluestem - grama prairie
   K074  Bluestem prairie
   K081  Oak savanna


SAF COVER TYPES : 
    14  Northern pin oak
    42  Bur oak
   110  Black oak
   236  Bur oak
   237  Interior ponderosa pine


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Western porcupine grass is codominant with rough fescue in an upland
grassland in central Alberta [3].  In Indiana, porcupine grass and
little bluestem (Schizachyrium scoparium) are major components in dry
sand prairies and black oak (Quercus velutinus) savannahs [6].  In
Wisconsin, South Dakota, and Nebraska, it is codominant with little
bluestem [8,28,45].

Porcupine grass occurs as a dominant or subdominant in the following
community type (cts) classifications:

Area                          Classification       Authority

sw ND                         grassland cts        Whitman 1979 
sc ND: Central Grasslands     grassland cts        Lura and others 1988
       Research Station
   ND:  Woodworth Station        general veg. cts     Meyer 1985

Alberta:  Peace - Athabasca   general veg. cts     Dirschl and others
          Delta                                    1974

               

Related categories for Species: Hesperostipa spartea | Porcupine Grass