DISTRIBUTION AND OCCURRENCE
SPECIES: Salix hastata | Halberd Willow 



GENERAL DISTRIBUTION : 
In North America, Halberd willow occurs in northern Alaska, the
mountains of central Alaska, including the Alaska range, and extreme
northwestern Canada.  It is most common near the Arctic Coast.  Halberd
willow also occurs in northern Europe and Asia, southward in the
mountains of both [7,21].
  


ECOSYSTEMS : 
   FRES23  Fir - spruce
   FRES44  Alpine


STATES : 
     AK  NT  YT


ADMINISTRATIVE UNITS : 
     DENA


BLM PHYSIOGRAPHIC REGIONS : 
NO-ENTRY


KUCHLER PLANT ASSOCIATIONS : 
   K015  Western spruce - fir forest
   K052  Alpine meadows and barren


SAF COVER TYPES : 
   201  White spruce
   202  White spruce - paper birch
   203  Balsam poplar
   204  Black spruce
   217  Aspen
   251  White spruce - aspen
   252  Paper birch
   253  Black spruce - white spruce
   254  Black spruce -  paper birch


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Halberd willow is a common thicket-forming shrub on streambanks and
moist slopes in the Arctic, extending to alpine regions and onto tundra
[2,12].  In the boreal forest of interior Alaska, Halberd willow occurs
primarily in willow thickets along small streams and is a pioneer
species on river sandbars and glacial moraines.  It is found
occasionally in alpine sedge bogs [17,21].  Halberd willow also occurs
in floodplain thickets on rivers and grows on newly exposed alluvial
deposits that are periodically flooded [1,21].
   

Related categories for Species: Salix hastata | Halberd Willow