familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Saccanthera
speciesPenstemon azureus
Penstemon azureus var. azureus
Endemic
Treatment appears in FNA Volume 17. Treatment on page 231.
Revision as of 20:08, 16 December 2019 by FNA>Volume Importer
Cauline leaves 10–65 × 4–20 mm, blade elliptic to ovate or lanceolate, base tapered to clasping or cordate-clasping. Flowers: calyx lobes obovate to oblong, 2.5–4.8 × 2–3.2 mm, apex cuspidate to mucronate. 2n = 48.
Phenology: Flowering May–Aug.
Habitat: River benches, mesas, and slopes in oak, pine, or juniper woodlands.
Elevation: 500–2500 m.
Discussion
Variety azureus is known from the Cascade, Klamath, and North Coast ranges, and in the Sierra Nevada from southwestern Oregon (Curry, Jackson, and Josephine counties) south to Fresno County, California.
Selected References
None.
Lower Taxa
None.