Arnica longifolia D.C. Eaton
Asteraceae
| Collection Number | Davidson, C 12071 |
| Collectors | C. Davidson, S. Christoph |
| Identified By | C. Davidson |
| Source | C. Davidson |
| Date | 07 August 2012 |
| Country | USA |
| state | Idaho |
| county | Valley |
| Location | Yellow Pine to Big Creek Road, ca. 0.5 mile south of Profile Summit. 2235 m elev. |
| Lat/Long | N 45 03 01.2 W 115 24 24.3 |
| Note | Forming extensive clumps along dry cobblestone streambank and seasonally dry meadow. Mixed conifer forest. |