familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Penstemon
speciesPenstemon heterodoxus
Penstemon heterodoxus var. shastensis
Brittonia 44: 482. 1992.
Endemic
Basionym: Penstemon shastensis D. D. Keck Amer. Midl. Naturalist 33: 165. 1945
Stems (10–)15–65 cm. Leaves: basal and proximal cauline 30–140 × 6–20 mm. Thyrses: axis usually sparsely glandular-pubescent, verticillasters 2–6. 2n = 32.
Phenology: Flowering Jul–Aug.
Habitat: Montane meadows.
Elevation: 1100–2400 m.
Discussion
Variety shastensis occurs at the northern end of the range of Penstemon heterodoxus in Butte, Lassen, Modoc, Plumas, Shasta, and Siskiyou counties.
Selected References
None.
Lower Taxa
None.