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Species Details
Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium Read more about this collection »
LeavesOpposite, 2-6 pairs, mostly stem leaves, blades heart-shaped to egg-shaped, 3-10 cm long, 2-10 cm wide, margins toothed
FlowersHeads 1-3, ray and disk flowers, erect, bases hairy; involucre bracts 13-22 mm tall, lance-shaped to reversed lance-shaped, hairy; ray flowers 9-16, yellow, toothed; disk flowers yellow, hairy; florets with sepals reduced to pappus; petals 5, united; stamens 5, fused around the style; pistils 1
Fruits and SeedsAchenes, 4-8 mm long, pappus white, finely-barbed
Scientific Name
Arnica cordifolia Hook.
Common Name
heart-leaved arnica
General Description
Perennial herb, simple, sometimes branched, 10-70 cm tall
Leaves
Opposite, 2-6 pairs, mostly stem leaves, blades heart-shaped to egg-shaped, 3-10 cm long, 2-10 cm wide, margins toothed
Flowers
Heads 1-3, ray and disk flowers, erect, bases hairy; involucre bracts 13-22 mm tall, lance-shaped to reversed lance-shaped, hairy; ray flowers 9-16, yellow, toothed; disk flowers yellow, hairy; florets with sepals…
Heads 1-3, ray and disk flowers, erect, bases hairy; involucre bracts 13-22 mm tall, lance-shaped to reversed lance-shaped, hairy; ray flowers 9-16, yellow, toothed; disk flowers yellow, hairy; florets with sepals reduced to pappus; petals 5, united; stamens 5, fused around the style; pistils 1
Fruits and Seeds
Achenes, 4-8 mm long, pappus white, finely-barbed
Phenology
Flowers from July to August
Notes
Similar Species:
Arnica latifolia
A. latifolia can be found in moist montane forests and meadows. It can be distinguished from A. cordifolia by elliptical to lance-shaped lowers leaves and hairless bracts.
Medical…
Similar Species:
Arnica latifolia
A. latifolia can be found in moist montane forests and meadows. It can be distinguished from A. cordifolia by elliptical to lance-shaped lowers leaves and hairless bracts.
Medical uses:
A. cordifolia was used by early pioneers with rubbing alcohol to make a liniment that reduced inflammation of muscles, joints and sprains.
Range/Distribution
Alberta: The foothills and Rocky Mountains
CAN (BC, MB, NT, ON, SK, YT); USA (AK, AZ, CA, CO, ID, MI, MT, ND, NM, NV, OR, SD, UT, WA, WY)
Citation
Page Citation for Arnica cordifolia Hook.
Page Citation
"Species Details - Arnica cordifolia Hook., University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/1-2909/12-142366. Accessed 05 Oct. 2024.
Specimen Information
There are 303 specimens of this Species.
88693 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Wyoming, Teton County, Togwotee Pass
Date Collected1978-08-09
88692 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Wyoming, Sublette County, Pinedale
Date Collected1978-08-09
88722 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Wyoming, Albany County, Centennial
Date Collected1978-08-08
88690 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Colorado, Chaffee County, Buena Vista
Date Collected1978-08-07
88747 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Oregon, Wallowa County, Joseph
Date Collected1978-07-18
88749 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Utah, Duchesne County, Duchesne, Hanna
Date Collected1978-08-05
88748 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Oregon, Wallowa County
Date Collected1978-07-19
88746 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Idaho, Lewis County, Craigmont
Date Collected1978-07-17
88745 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Montana, Lincoln County, Mount Marston
Date Collected1978-07-15
88721 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Washington, Blewett Pass
Date Collected1978-07-20
88664 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Oregon, Wallowa County, Wallowa Lake
Date Collected1978-07-18
88720 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Oregon, Union County, Elgin
Date Collected1978-07-19
88719 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Idaho, Idaho County, Shingle Creek
Date Collected1978-07-17
88655 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Oregon, Wheeler County, Ochoco Mountains
Date Collected1979-05-31
88656 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Oregon, Klamath County, Parker Mountain
Date Collected1979-06-01
88658 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, California, Nevada county, Donner Lake
Date Collected1979-06-13
88657 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Nevada, Humboldt-Toiyabe National Forest
Date Collected1979-06-15
88723 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Targhee Pass
Date Collected1978-08-10
88654 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Oregon, Grant County, Mount Vernon
Date Collected1979-05-31
88724 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Montana, Flathead County, Bigfork
Date Collected1979-06-19
88725 - Arnica cordifolia Hook.
University of Alberta Vascular Plant Herbarium
Common Nameheart-leaved arnica
Place CollectedNorth America: United States, Montana, Missoula County, Seeley Lake
Date Collected1979-06-19