DISTRIBUTION AND OCCURRENCE
SPECIES: Ephedra nevadensis | Nevada Ephedra 



GENERAL DISTRIBUTION : 
Nevada ephedra occurs from Utah and Arizona through Nevada to Harney
County, Oregon, and into southeastern California and Mexico [4,26].  It
grows in the Mojave Desert of California and in the transition zone
between the Mojave and the Great Basin [3].


ECOSYSTEMS : 
   FRES29  Sagebrush
   FRES30  Desert shrub
   FRES36  Mountain grasslands
   FRES40  Desert grasslands


STATES : 
     AZ  CA  CO  NV  OR  TX  UT  MEXICO


ADMINISTRATIVE UNITS : 
     DEVA  GRCA  GRBA  JOTR  LAME  NABR
     ZION


BLM PHYSIOGRAPHIC REGIONS : 
    5  Columbia Plateau
    6  Upper Basin and Range
    7  Lower Basin and Range
   12  Colorado Plateau


KUCHLER PLANT ASSOCIATIONS : 
   K038  Great Basin sagebrush
   K039  Blackbrush
   K040  Saltbush - greasewood
   K041  Creosotebush
   K044  Creosotebush - tarbush
   K046  Desert: vegetation largely lacking 
   K051  Wheatgrass - bluegrass
   K055  Sagebrush steppe
   K057  Galleta - three-awn shrubsteppe


SAF COVER TYPES : 
NO-ENTRY


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Nevada ephedra is an indicator of edaphic or biotic climax in a number
of sagebrush (Artemisia spp.)-grassland communities.  It is described as
codominant with big sagebrush (A. tridentata) and Indian ricegrass
(Oryzopsis hymenoides) in the following Nevada vegetation typing:

Vegetation and soils of the Churchill Canyon Watershed [2]

Related categories for Species: Ephedra nevadensis | Nevada Ephedra