familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Spectabiles
speciesPenstemon palmeri
Penstemon palmeri var. palmeri
Selected by author to be illustratedEndemic
Revision as of 18:31, 24 September 2019 by FNA>Volume Importer
Distal cauline leaves connate-perfoliate. Thyrses: peduncles and pedicels glandular-pubescent. Flowers: calyx lobes glandular-pubescent; corolla tube 4–6 mm; pollen sacs 1.8–2.4 mm. 2n = 16.
Phenology: Flowering May–Jul.
Habitat: Washes, roadsides, canyon floors, creosote shrublands, pinyon-juniper woodlands.
Elevation: 800–2800 m.
Distribution
Ariz., Calif., Colo., Idaho, Nev., N.Mex., Utah, Wash., Wyo.
Discussion
Because of its stature and showy flowers, var. palmeri is seeded widely in the western United States along roadsides after construction. Populations in Colorado, Idaho, Washington, and Wyoming are introduced; some in New Mexico also appear to have resulted from seeding.
Selected References
None.
Lower Taxa
None.