familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Penstemon
speciesPenstemon rattanii
Penstemon rattanii var. rattanii
Endemic
Treatment appears in FNA Volume 17. Treatment on page 219.
Revision as of 18:30, 24 September 2019 by FNA>Volume Importer
Flowers: calyx lobes lanceolate, sometimes ovate, (5.5–)6.5–10 × (1–)2–2.5 mm, usually longer than capsules, apex acute to acuminate, sometimes obtuse. 2n = 16.
Phenology: Flowering Jun–Jul.
Habitat: Grassy slopes in fir-spruce, redwood, and mixed-evergreen forests.
Elevation: 10–1200 m.
Discussion
Variety rattanii is known from the Coast Range of northwestern California (Del Norte, Humboldt, and Mendocino counties) and southwestern Oregon (Benton, Coos, Curry, and Douglas counties).
Selected References
None.
Lower Taxa
None.