Penstemon wilcoxii Rydb.

Idaho: Clearwater County: Clearwater National Forest, Clearwater Mountains between N Fk and Little N Fk Clearwater rivers. Roadcut along road from Aquarius CG to Smith Ridge, ca 100 yds E of saddle of ridge and trailhead to Mallard Larkins Pioneer Area. Elev. 4300 ft.
46.903955° N, 115.685349° W,
Datum: WGS 84. Uncertainty: 3554 meters. Coordinate Source: Digital Map.
With Salix scouleriana, Acer glabrum, Alnus sinuata and numerous additional plants of this species with highly variable flower color and leaf margins. Surrounding forest of Abies lasiocarpa, Picea engelmannii, Tsuga mertensiana and Abies grandis. Soil coarse, derived from quartzite of the Belt Series of Precambrian rocks. Flower of this specimen medium to deep blue; leaves prominently toothed (unlike most other specimens in this population: those with medium to deep blue flowers tend to have leaf margins prominently toothed. Phenology: Flowers.

Douglass Henderson 6823, Jul 22, 1983
With Anita Cholewa
ID, Accession: 80936, Barcode: ID118358