Utah Valley University Herbarium


Accession # 15810 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Arnica longifolia D.C. Eaton
Infraspecific    var. longifolia 
Common name   spearleaf arnica
Oliver Hansen   93  
   with Megan Hansen
Coll. Date 06 September 2010 
United States
Summit County
Locality Uinta Mountains, NW shoreline of Marsh Lake;
     Elev.: 9356 ft. (2852 m.)
Habitat Notes lake margins; associated species: Artemisisa tridentata, Pinus contorta. 
Climate NCDC temperatures, daily high (red), daily average (green) and daily low (blue), from 1970 to 2000 at this location.   NCDC average monthly precipitation from 1970 to 2000 at this location.
Latitude Longitude 40° 57'  34.14" N, 110° 23'  48.42" W
Datum WGS84 
Uncertainty Polygon diameter (with coordinate as origin): GPS
Georef. Notes This coordinate was obtained by a GPS unit and an error estimate was not recorded by the user. However due to the accuracy of most units, a polygon diameter between 25 and 250 meters could reasonably be assumed.
Voucher Senior Thesis Voucher for Henry's Fork and Vicinity Checklist, Block 19, northern Utah and southern Wyoming. 


No synonyms recognized in the ITIS database.


Available images of this specimen (click to view):
specimen image: 15810s1.jpg

Images of other samples of the same species:
specimen image: 04473s6.jpg 
specimen image: 05749s3.jpg 
specimen image: 06373s3.jpg 
specimen image: 07767s3.jpg 
specimen image: 08757s2.jpg 
specimen image: 09157s3.jpg 
specimen image: 09157f1.jpg 
specimen image: 14061s1.jpg 
specimen image: 14061d1.jpg 
specimen image: 14061c1.jpg 
specimen image: 14061b1.jpg 
specimen image: 14061a1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
15950 Achillea millefolium      "common yarrow" same section
15811 Achillea millefolium      "common yarrow" same section
15816 Androsace septentrionalis      "pygmy-flowered rockjasmine" same section
15812 Artemisia tridentata  var. vaseyana   "Vasey's big sagebrush" same section
15813 Aster spathulatus      "western mountain aster" same section
15818 Astragalus miser  var. oblongifolius   "timber milkvetch" 2673 ft. S
15827 Bromus inermis      "smooth brome" 2673 ft. S
15825 Elymus lanceolatus      "thickspike wheatgrass" 2673 ft. S
15826 Elymus trachycaulus      "slender wheatgrass" 2673 ft. S
15809 Epilobium angustifolium  var. canescens  1401 ft. N
15814 Erigeron eximius      "spruce-fir fleabane" same section
15815 Galium bifolium      "twinleaf bedstraw" same section
15817 Linum perenne  subsp. lewisii   "Lewis' blue flax" 2673 ft. S
15804 Nuphar polysepala     same section
15954 Nuphar polysepala     same section
15953 Nuphar polysepala     same section
15820 Poa alpina      "alpine bluegrass" 2673 ft. S
15822 Poa arctica      "arctic bluegrass" 2673 ft. S
15821 Poa glauca  var. glauca   "Greenland bluegrass" 2673 ft. S
15823 Poa secunda      "Sandberg's bluegrass" 2673 ft. S
15803 Ranunculus aquatilis  var. diffusus  same section
15819 Trifolium repens      "white clover" 2673 ft. S
15824 Trisetum spicatum      "narrow oat-grass" 2673 ft. S


Nearby locations from the USGS Geographic Name Information System (GNIS) database:

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Marsh Lake Dam (Dam) Summit County, UT 830 ft. N 9341  Bridger Lake 
Marsh Lake (Reservoir) Summit County, UT 830 ft. N 9341  Bridger Lake 
Marsh Lake (Lake) Summit County, UT 955 ft. SE 9351  Bridger Lake 
West Marsh Lake Campground (Locale) Summit County, UT 1451 ft. S 9341  Bridger Lake 
Marsh Lake Campground (Locale) Summit County, UT 2930 ft. S 9397  Bridger Lake 
Bridger Lake Guard Station (Locale) Summit County, UT 2359 ft. E 9371  Bridger Lake 
Bridger Lake (Lake) Summit County, UT 2946 ft. E 9351  Bridger Lake 
Bridger Lake Campground (Locale) Summit County, UT 0.7 mi. NE 9364  Bridger Lake 
China Lake Dam (Dam) Summit County, UT 1.2 mi. S 9505  Bridger Lake 
China Lake (Reservoir) Summit County, UT 1.2 mi. S 9505  Bridger Lake 
China Lake (Lake) Summit County, UT 1.4 mi. S 9416  Bridger Lake 
Stateline Reservoir (Reservoir) Summit County, UT 1.7 mi. N 9108  Bridger Lake 
Stateline Campground (Locale) Summit County, UT 1.7 mi. N 9233  Bridger Lake 
China Meadows Campground (Locale) Summit County, UT 2 mi. S 9394  Bridger Lake 
Sargent Lake (Lake) Summit County, UT 2.2 mi. S 9692  Bridger Lake 
China Meadows (Flat) Summit County, UT 2.2 mi. S 9403  Bridger Lake 
Johnson Meadows (Flat) Summit County, UT 1.9 mi. NW 9587  Bridger Lake 
Grahams Reservoir (Reservoir) Uinta County, WY 2.5 mi. N 9213  Bridger Lake 
Trail Head Campground (Locale) Summit County, UT 2.5 mi. S 9456  Bridger Lake 
Gilbert Meadow (Flat) Summit County, UT 2.7 mi. W 9666  Bridger Lake 


Taxon Links for species Arnica longifolia  D.C. Eaton

CalPhotos, Berkeley Digital Library Project

CNPS Manual of California Vegetation Database

USDA Plants database
University of Washington Herbarium: Plants of Washington (images)

Texas A&M University: Image Library (images)

Lady Bird Johnson's Wildflower Center

Google Images

External link to this species in the UVU Herbarium:

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