familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Coerulei
speciesPenstemon pachyphyllus
Penstemon pachyphyllus var. congestus
Brittonia 31: 105. 1979.
Endemic
Basionym: Penstemon acuminatus var. congestus M. E. Jones Proc. Calif. Acad. Sci., ser. 2, 5: 714. 1895
Synonyms: P. pachyphyllus subsp. congestus (M. E. Jones) D. D. Keck
Flowers: staminode 10–12 × (0.2–)0.5–1 mm, distal 4–7 mm densely villous, hairs to 1.5 mm. 2n = 16.
Phenology: Flowering May–Jul(–Aug).
Habitat: Sandy to gravelly sagebrush shrubland, pinyon-juniper, Gambel oak, ponderosa pine, and bristlecone pine woodlands.
Elevation: 1200–3100 m.
Distribution
Ariz., Nev., Utah.
Discussion
Variety congestus is known from the Uinta Basin of northeastern Utah to the Grand Canyon Plateau of Arizona and to the Calcareous Mountains of east-central Nevada.
Selected References
None.
Lower Taxa
None.