DISTRIBUTION AND OCCURRENCE
SPECIES: Rhus trilobata | Skunkbush Sumac 



GENERAL DISTRIBUTION : 
Skunkbush sumac is distributed from Alberta to Mexico and from
California eastward to Indiana, Missouri, and Arkansas [1,22].  In
Montana and several other western states, it occurs primarily east of
the Rocky Mountains [22].  General distribution of varieties is as
follows [1,21]:

var. anisophylla - Oregon and California to Arizona and New Mexico,
                   south into Mexico.
var. arenaria - Sand dunes of Great Lakes Region, Indiana, and Illinois.
var. pilosissima - California to Texas, Mexico.
var. quinata - Oregon and California south into Arizona and New Mexico.
var. racemulosa - Arizona and New Mexico, Mexico.
var. serotina - Missouri and Arkansas to Nebraska and Kansas, south to Texas.
var. simplicifolia - Oklahoma, Colorado and Utah, southward to Arizona
                     and Mexico.
var. trilobata - Pacific Northwest.


ECOSYSTEMS : 
   FRES17  Elm - ash - cottonwood
   FRES20  Douglas-fir
   FRES21  Ponderosa pine
   FRES23  Fir - spruce
   FRES26  Lodgepole pine
   FRES28  Western hardwoods
   FRES29  Sagebrush
   FRES30  Desert shrub
   FRES31  Shinnery
   FRES34  Chaparral - mountain shrub
   FRES35  Pinyon - juniper
   FRES36  Mountain grasslands
   FRES38  Plains grasslands
   FRES39  Prairie
   FRES40  Desert grasslands


STATES : 
     AZ  AR  CA  CO  ID  IL  IN  IA  KS  MI
     MO  MT  NE  NV  NM  ND  OK  OR  SD  TX
     UT  WA  WY  AB  SK  Mexico


ADMINISTRATIVE UNITS : 
     AGFO  ARCH  BADL  BAND  BICA  BRCA
     CACH  CANY  CARE  CHCU  COLM  DETO
     DINO  GLCA  GRCA  GRTE  GRBA  LAME
     LAVO  MEVE  MOCA  NABR  ORPI  PEFO
     SAGU  SAMO  SCBL  SUCR  THRO  TICA
     WACA  WUPA  YELL  YOSE  ZION


BLM PHYSIOGRAPHIC REGIONS : 
    3  Southern Pacific Border
    4  Sierra Mountains
    5  Columbia Plateau
    6  Upper Basin and Range
    7  Lower Basin and Range
    8  Northern Rocky Mountains
    9  Middle Rocky Mountains
   10  Wyoming Basin
   11  Southern Rocky Mountains
   12  Colorado Plateau
   13  Rocky Mountain Piedmont
   14  Great Plains
   15  Black Hills Uplight
   16  Upper Missouri Basin and Broken Lands


KUCHLER PLANT ASSOCIATIONS : 
   K011  Western ponderosa forest
   K012  Douglas-fir forest
   K016  Eastern ponderosa forest
   K017  Black Hills pine forest
   K018  Pine - Douglas-fir forest
   K019  Arizona pine forest
   K020  Spruce - fir - Douglas-fir forest
   K023  Juniper - pinyon woodland
   K037  Mountain-mahogany - oak scrub
   K038  Great Basin sagebrush
   K040  Saltbush - greasewood
   K051  Wheatgrass - bluegrass
   K055  Sagebrush steppe
   K056  Wheatgrass - needlegrass shrubsteppe
   K057  Galleta - threeawn shrubsteppe
   K063  Foothills prairie
   K064  Grama - needlegrass - wheatgrass
   K065  Grama - buffalograss
   K066  Wheatgrass - needlegrass
   K070  Sandsage - bluestem prairie 
   K071  Shinnery
   K081  Oak savanna
   K098  Northern floodplain forest


SAF COVER TYPES : 
   206  Engelmann spruce - subalpine fir
   210  Interior Douglas-fir
   219  Limber pine
   220  Rocky Mountain juniper
   237  Interior ponderosa pine
   239  Pinyon - juniper
   240  Arizona cypress


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Skunkbush sumac occurs as an indicator of climax in a number of plant
communities.  It has been identified as a codominant with the following
species:  bluebunch wheatgrass (Pseudoroegneria spicata), big bluestem
(Andropogon gerardii var. gerardii), Idaho fescue (Festuca idahoensis),
true, true mountain-mahogany (Cercocarpus montanus), and little bluestem
(Schizachyrium scoparium).

Skunkbush sumac is listed as a habitat type indicator in the following
publications:

Grassland and shrubland habitat types of the Shoshone National Forest [41]
Grassland and shrubland habitat types of western Montana [31]

Related categories for Species: Rhus trilobata | Skunkbush Sumac