Penstemon aridus Rydb.

Idaho: Butte County: East slope Lemhi Range, Targhee NF, South Fork Eight Mile Canyon ca 1 mile S of Junction with Middle Fk. Elev. 9000 ft.
44.041577° N, 112.998075° W,
Datum: WGS 84. Uncertainty: 1000 meters. Coordinate Source: Digital Map. Updated county from Clark to Butte.
Along trail. With Astragalus kentrophyta, Pinus flexilis, Pseudotsuga, Picea engelmannii, Arabis sp.. Plants small; lvs stiff; corolla tube narrow, magenta, gradually flared into the throat; throat pale blue, abruptly spreading into the pale blue limb; palate white, slightly bearded; anthers purple, evident; dehiscing their entire length; staminode included, yellow-bearded on the distal ca 1.5 mm. Phenology: Flowers.

Doug Henderson 1407, Jul 2, 1974
With J. Jensen
ID, Accession: 65268, Barcode: ID115290