DISTRIBUTION AND OCCURRENCE
SPECIES: Salix geyeriana | Geyer Willow 



GENERAL DISTRIBUTION : 
Geyer willow occurs from southern British Columbia southward in the
mountains to central California, central Arizona, and southern Colorado.
It is widespread in the Cascades, Sierra Nevada, and northern and
central Rocky Mountains, and is found in scattered mountain ranges in
southern Idaho, eastern Oregon, Nevada, northern Utah, southern
Colorado, and Arizona [33,34].


ECOSYSTEMS : 
   FRES20  Douglas-fir
   FRES21  Ponderosa pine
   FRES23  Fir - spruce
   FRES28  Western hardwoods
   FRES29  Sagebrush
   FRES34  Chaparral - mountain shrub
   FRES35  Pinyon - juniper
   FRES36  Mountain grasslands
   FRES37  Mountain meadows


STATES : 
     AZ  CA  CO  ID  MT  NV  OR  UT  WA  WY
     BC


ADMINISTRATIVE UNITS : 
     BIHO  BRCA  GLAC  GRCA  GRTE  GRKO
     MORA  NOCA  ROMO  TICA  YELL  ZION


BLM PHYSIOGRAPHIC REGIONS : 
    1  Northern Pacific Border
    2  Cascade Mountains
    4  Sierra Mountains
    5  Columbia Plateau
    6  Upper 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
   16  Upper Missouri Basin and Broken Lands


KUCHLER PLANT ASSOCIATIONS : 
   K011  Western ponderosa forest
   K012  Douglas-fir forest
   K015  Western spruce - fir forest
   K020  Spruce - fir - Douglas-fir forest
   K021  Southwestern spruce - fir forest
   K023  Juniper - pinyon woodland
   K037  Mountain-mahogany - oak scrub
   K052  Alpine meadows and barren
   K055  Sagebrush steppe
   K063  Foothills prairie


SAF COVER TYPES : 
   206  Engelmann spruce - subalpine fir
   210  Interior Douglas-fir
   211  White fir
   216  Blue spruce
   217  Aspen
   218  Lodgepole pine
   237  Interior ponderosa pine
   239  Pinyon - juniper


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Geyer willow commonly dominates shrubby communities associated with
lower, middle, and upper elevation mountain streams and meadows
[23,30,44,54].  These communities have an "open and clumpy appearance"
or an "open, corridor-like structure".  Large patches of Geyer willow
form the overstory, with lesser amounts of shrubby willow species
intermixed in the openings.  Willow associates include Booth willow
(Salix boothii), yellow willow (S. lutea), Bebb willow (S.  bebbiana),
planeleaf willow (S. planifolia ssp. planifolia), Drummond willow (S.
drummondiana), and Lemmon willow [5,30,54].  The undergrowth
is often dense, and	 dominated by sedges (Carex spp.), bluegrasses (Poa spp.), tufted
hairgrass (Deschampsia caespitosa), bluejoint reedgrass (Calamagrostis
canadensis), or mesic forbs [24,30,44,54].

Published classifications listing Geyer willow as a dominant part of the
vegetation in community types (cts), habitat types (hts), dominance
types (dts), site types (sts), or riparian zone associations are
presented below:

   Area                Classification               Authority

e ID, w WY            riparian cts             Youngblood & others 1985a
MT                    riparian dts             Hansen & others 1988
e, c MT               riparian cts, hts        Hansen & others 1990
w-c MT                wetland cts              Pierce & Johnson 1986
nw MT                 riparian hts             Boggs & others 1990
sw MT                 riparian sts, cts, hts   Hansen & others 1989
NV                    riparian cts             Manning & Padgett 1989
OR: Deschutes,
 Ochoco, Fremont & 
 Winema NF's          riparian zone assoc.     Kovalchik 1987
UT, se ID             riparian cts             Padgett & others 1989

Unpublished theses and dissertations describing Geyer willow communities
include:

   Area              Classification               Author

se OR                 riparian cts             Evenden 1989
OR: Malheur NF        riparian cts             Padgett 1981
Yellowstone NP        wetland cts              Brichta 1986
Yellowstone NP        wetland hts              Mattson 1984

Related categories for Species: Salix geyeriana | Geyer Willow