Penstemon attenuatus Douglas ex Lindl.
Plantaginaceae
| Collection Number | C. Davidson 13803 |
| Collectors | C. Davidson, S. R. Christoph |
| Identified By | C. Davidson |
| Source | C. Davidson |
| Date | 07 July 2018 |
| Country | USA |
| state | Idaho |
| county | Benewah |
| Location | Junction of FSR 447/504, 6.8 km from Hwy 3. Elev. 889 m. (Near Benewah/Shoshone County line.) |
| Lat/Long | N 47 00 59.6 W 116 19 48.1 |
| Note | Sunny, grassy creekside in Doug fir forest. |