DISTRIBUTION AND OCCURRENCE
SPECIES: Arnica cordifolia | Heartleaf Arnica 



GENERAL DISTRIBUTION : 
Heartleaf arnica is found from Alaska east to Saskatchewan and south to
northern Mexico and Nebraska [34,44].  A disjunct population occurs on
the Keweenaw Peninsula of northern Michigan [18].


ECOSYSTEMS : 
   FRES11  Spruce - fir
   FRES17  Elm - ash - cottonwood
   FRES19  Aspen - birch
   FRES20  Douglas-fir
   FRES21  Ponderosa pine
   FRES22  Western white pine
   FRES23  Fir - spruce
   FRES25  Larch
   FRES26  Lodgepole pine
   FRES28  Western hardwoods
   FRES29  Sagebrush
   FRES34  Chaparral - mountain shrub
   FRES35  Pinyon - juniper
   FRES36  Mountain grasslands
   FRES38  Plains grasslands
   FRES44  Alpine


STATES : 
     AL  AZ  CA  CO  ID  MI  MT  NE  NM  ND
     OR  SD  UT  WA  WY  AB  BC  SK  YT  MEXICO


ADMINISTRATIVE UNITS : 
     BIHO  BICA  BLCA  BRCA  CEBR  CRLA
     CRMO  DINO  FOBU  GLAC  GRCA  GRTE
     GRBA  MORA  NOCA  OLYM  ROMO  TICA
     YELL  YOSE  ZION


BLM PHYSIOGRAPHIC REGIONS : 
    1  Northern Pacific Border
    2  Cascade Mountains
    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 Uplift
   16  Upper Missouri Basin and Broken Lands


KUCHLER PLANT ASSOCIATIONS : 
   K007  Red fir forest
   K008  Lodgepole pine - subalpine forest
   K011  Western ponderosa forest
   K012  Douglas-fir forest
   K013  Cedar - hemlock - pine forest
   K015  Western spruce - fir forest
   K016  Eastern ponderosa forest
   K017  Black Hills pine forest
   K018  Pine - Douglas-fir forest
   K021  Southwestern spruce - fir forest
   K023  Juniper - pinyon woodland
   K029  California mixed evergreen forest
   K037  Mountain-mahogany - oak scrub
   K052  Alpine meadows and barren
   K055  Sagebrush steppe
   K098  Northern floodplain forest


SAF COVER TYPES : 
   201  White spruce
   204  Black spruce
   205  Mountain hemlock
   206  Engelmann spruce - subalpine fir
   207  Red fir
   208  Whitebark pine
   209  Bristlecone pine
   256  California mixed subalpine
   210  Interior Douglas-fir
   211  White fir
   212  Western larch
   213  Grand fir
   215  Western white pine
   216  Blue spruce
   217  Aspen
   218  Lodgepole pine
   219  Limber pine
   224  Western hemlock
   228  Western redcedar
   237  Interior ponderosa pine


SRM (RANGELAND) COVER TYPES : 
NO-ENTRY


HABITAT TYPES AND PLANT COMMUNITIES : 
Heartleaf arnica is a dominant ground cover in many forest communities
of the West.  Publications listing heartleaf arnica as a dominant or
indicator species are:

Classification of the forest vegetation of Wyoming [1]
Fire ecology of the forest habitat types of central Idaho [10]
Forest vegetation of the Arapaho and Roosevelt National Forests in
   central Colorado:  a habitat type classification [20]
Forest vegetation of Bighorn Mountains, Wyoming: a habitat type
   classification [22]
Plant associations of the Fremont National Forest [23]
Forest vegetation of the Gunnison and parts of the Uncompahgre National
   Forests:  a preliminary habitat type classification [26]

Common plant associates of heartleaf arnica include huckleberry
(Vaccinium spp.), sweetscented bedstraw (Galium triflorum), queencup
beadlily (Clintonia uniflora), twinflower (Linnaea borealis), pussytoes
(Antennaria spp.), timber milkvetch (Astragalus miser), elk sedge (Carex
geyeri), and bluebunch wheatgrass (Pseudoroegneria spicata).

Related categories for Species: Arnica cordifolia | Heartleaf Arnica