familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Coerulei
speciesPenstemon nitidus
Difference between revisions of "Penstemon nitidus var. polyphyllus"
Vasc. Pl. Pacif. N.W. 4: 395. 1959.
Endemic
Basionym: Penstemon nitidus subsp. polyphyllus Pennell Notul. Nat. Acad. Nat. Sci. Philadelphia 95: 6. 1942
Treatment appears in FNA Volume 17. Treatment on page 122.
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Revision as of 20:24, 27 May 2020
Thyrses: proximal bracts ovate to lanceolate. Flowers: calyx lobes lanceolate, (3.2–)5–7.5 mm.
Phenology: Flowering Apr–Jun.
Habitat: Rocky or gravelly soils, slopes and banks, montane grasslands.
Elevation: 400–1700 m.
Discussion
Variety polyphyllus is known from the upper Clark Fork River valley of east-central Idaho (Lemhi County) and west-central Montana (Beaverhead, Deer Lodge, Granite, Jefferson, Madison, Missoula, Powell, and Silver Bow counties). Compared to var. nitidus, it generally is taller and has relatively longer, narrower leaves, bracts, and calyx lobes.
Selected References
None.
Lower Taxa
None.