familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Spectabiles
speciesPenstemon fruticiformis
Penstemon fruticiformis var. amargosae
Brittonia 44: 481. 1992.
Endemic
Basionym: Penstemon fruticiformis subsp. amargosae D. D. Keck Amer. Midl. Naturalist 18: 801. 1937
Flowers: calyx lobes ovate, 4.5–6.5 × 2.5–4 mm; corolla 22–24 mm, ± glandular-pubescent externally.
Phenology: Flowering Apr–Jun.
Habitat: Creosote shrublands.
Elevation: 900–1900 m.
Discussion
Variety amargosae is known from Inyo and San Bernardino counties, California, and Nye County, Nevada. The glandular hairs of the corollas can be sparse; they usually are easy to see on flower buds.
Selected References
None.
Lower Taxa
None.