familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Spectabiles
speciesPenstemon palmeri
Penstemon palmeri var. eglandulosus
Brittonia 31: 105. 1979.
Endemic
Basionym: Penstemon palmeri subsp. eglandulosus D. D. Keck Amer. Midl. Naturalist 18: 797. 1937
Distal cauline leaves connate-perfoliate. Thyrses: peduncles and pedicels glabrous. Flowers: calyx lobes glabrous; corolla tube 4–6 mm; pollen sacs 1.6–2(–2.2) mm.
Phenology: Flowering Jun–Jul.
Habitat: Washes, roadsides, desert shrublands, pinyon-juniper woodlands, pine woodlands.
Elevation: 1500–2600 m.
Distribution
Ariz., N.Mex., Utah.
Discussion
Variety eglandulosus occurs from the southern end of the Utah Plateau (Emery, Garfield, Grand, Iron, Kane, San Juan, Washington, and Wayne counties, Utah) to the Kaibab Plateau in northern Coconino and Mohave counties, Arizona. A population in Socorro County, New Mexico, appears to have been seeded along a roadside.
Selected References
None.
Lower Taxa
None.