familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Dasanthera
sectionPenstemon sect. Erianthera
speciesPenstemon fruticosus
Penstemon fruticosus var. fruticosus
Endemic
Leaves 15–50(–60) × 5–12 mm, blade lanceolate to oblanceolate or elliptic, margins entire, serrate, or dentate, rarely sharply serrate or dentate. Flowers: corolla 28–40 mm. 2n = 16.
Phenology: Flowering Apr–Jul.
Habitat: Rock outcrops, gravelly slopes, forest openings, roadcuts.
Elevation: 300–3000 m.
Distribution
B.C., Idaho, Mont., Oreg., Wash., Wyo.
Discussion
Variety fruticosus is known from the Cascade Range, Columbia Plateau, and southern part of the Northern Rocky Mountains, from southern British Columbia, through much of Washington, Idaho, and Oregon to southwestern Montana and northwestern Wyoming.
Selected References
None.
Lower Taxa
None.