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
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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.