DISTRIBUTION AND OCCURRENCE
SPECIES: Yucca glauca | Soapweed Yucca 



GENERAL DISTRIBUTION : 
Soapweed yucca grows throughout much of the Great Plains from Texas and
Arizona northward to Montana and the Dakotas [23,26].  It extends eastward
into portions of Kansas, Nebraska, Iowa, and Missouri [23,45].  


ECOSYSTEMS : 
   FRES17  Elm - ash - cottonwood
   FRES21  Ponderosa pine
   FRES29  Sagebrush
   FRES31  Shinnery
   FRES34  Chaparral - mountain shrub
   FRES35  Pinyon - juniper
   FRES38  Plains grasslands
   FRES39  Prairie
   FRES40  Desert grasslands


STATES : 
     AZ  CO  IA  KS  MO  MT  NE  NM  ND  OK
     SD  TX  WY


ADMINISTRATIVE UNITS : 
     BADL  BICA  BUFF  DETO  FLFO  GRSA
     ROMO  SCBL  THRO  WICA


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


KUCHLER PLANT ASSOCIATIONS : 
   K011  Western ponderosa forest
   K016  Eastern ponderosa forest
   K017  Black Hills pine forest
   K018  Pine - Douglas-fir forest
   K023  Juniper - pinyon woodland
   K037  Mountain mahogany - oak scrub
   K038  Great Basin sagebrush
   K053  Grama - galleta steppe
   K054  Grama - tobosa prairie
   K055  Sagebrush steppe
   K056  Wheatgrass - needlegrass shrubsteppe
   K059  Trans-Pecos shrub savanna
   K064  Grama - needlegrass - wheatgrass
   K065  Grama - buffalograss
   K066  Wheatgrass - needlegrass
   K067  Wheatgrass - bluestem - needlegrass
   K070  Sandsage - bluestem prairie
   K071  Shinnery
   K098  Northern floodplain forest


SAF COVER TYPES : 
   237  Interior ponderosa pine
   239  Pinyon - juniper


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Soapweed yucca is a common constituent of many plains grassland, drier
forest-grassland and prairie communities.  It has been described as a
climax dominant on sandy range sites, and grasslands of Montana east of
the Continental Divide [35].  It is listed as an indicator in the
following range site classification scheme:

Climax vegetation of Montana based on soils and climate [35]

Associated plants:  Soapweed yucca is commonly associated with the
following species in plains grassland communities:  needle-and-thread
(Stipa comata), western wheatgrass (Pascopyrum (Agropyron) smithii),
blue grama (Bouteloua gracilis), sand bluestem (Andropogon gerardii var.
paucipilus), big bluestem (Andropogon gerardi var. gerardii), sideoats
grama (B. curtipendula), little bluestem (Schizachyrium scoparium),
sand dropseed (Sporobolus cryptandrus), galleta (Hilaria jamesii),
mesquite (Prosopis glandulosa), sunflower (Helianthus spp.), and
leadplant (Amorpha canescens) [3,10].

Related categories for Species: Yucca glauca | Soapweed Yucca