Index / Search / Arnica sororia
§1 Plant
Arnica sororia Greene
vernacular twin arnica — species · Asteraceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Perennial
- Group
- Dicot
- Family
- Asteraceae Bercht. & J. Presl
- Genus
- Arnica
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 110 counties across 8 states/territories§3Cultivation
No cultivation specs.
USDA has not characterised this taxon. Roughly four out of five plants in the database lack the detailed cultivation record present here — typically because they have not been the focus of NRCS Plant Materials work. Range and distribution data are unaffected.
§4Counties, by state
Recorded in 110 counties across 8 states/territories.
California view state ↗ 7 N ▾
Idaho view state ↗ 28 N ▾
- Adams 16003
- Bannock 16005
- Bear Lake 16007
- Bingham 16011
- Blaine 16013
- Boise 16015
- Bonneville 16019
- Butte 16023
- Camas 16025
- Canyon 16027
- Cassia 16031
- Clark 16033
- Custer 16037
- Elmore 16039
- Franklin 16041
- Fremont 16043
- Gooding 16047
- Idaho 16049
- Latah 16057
- Lemhi 16059
- Lincoln 16063
- Madison 16065
- Nez Perce 16069
- Owyhee 16073
- Teton 16081
- Twin Falls 16083
- Valley 16085
- Washington 16087
Montana view state ↗ 28 N ▾
- Big Horn 30003
- Broadwater 30007
- Carbon 30009
- Cascade 30013
- Custer 30017
- Fergus 30027
- Flathead 30029
- Gallatin 30031
- Glacier 30035
- Golden Valley 30037
- Hill 30041
- Lake 30047
- Lewis and Clark 30049
- Madison 30057
- Meagher 30059
- Missoula 30063
- Musselshell 30065
- Park 30067
- Petroleum 30069
- Phillips 30071
- Pondera 30073
- Powell 30077
- Ravalli 30081
- Stillwater 30095
- Teton 30099
- Valley 30105
- Wheatland 30107
- Yellowstone 30111
Nevada view state ↗ 3 N ▾
Oregon view state ↗ 12 N ▾
Utah view state ↗ 4 N ▾
Washington view state ↗ 14 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/ARSO2 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/5405982 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z