Castilleja tenuis (A. Heller) T.I. Chuang & Heckard
Orobanchaceae
| Collection Number | C. Davidson 13680 |
| Collectors | C. Davidson, S. R. Christoph |
| Identified By | C. Davidson |
| Source | C. Davidson |
| Date | 18 June 2017 |
| Country | USA |
| state | Idaho |
| county | Blaine |
| Location | Rock Creek Ranch, a Nature Conservancy reserve. Main access road ca. 1 km north of Hwy 20. 1494 m elev. |
| Lat/Long | N 43 20 41.1 W 114 22 58.7 |
| Note | Intermountain steppe with Purshia, Artemisia, Eriogonum spp., Balsamorhiza spp. on Eriogonum. Hillside above seasonal runoff channel W of road, still with a trickle of flowing water, just past the first cattle guard. |