familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Dasanthera
sectionPenstemon sect. Erianthera
speciesPenstemon montanus
Penstemon montanus var. idahoensis
in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. 4: 394. 1959.
IllustratedEndemic
Basionym: Penstemon montanus subsp. idahoensis D. D. Keck Brittonia 8: 247. 1957
Leaf blades: margins entire or subentire, glabrous or puberulent, usually glaucous. Flowers: corolla moderately white-lanate internally abaxially.
Phenology: Flowering Jun–Aug.
Habitat: Granite crevices, weathered granite.
Elevation: 2100–3200 m.
Discussion
Variety idahoensis is known from the mountains of central Idaho in Blaine, Custer, Elmore, and Valley counties.
Selected References
None.
Lower Taxa
None.