familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Coerulei
speciesPenstemon angustifolius
Difference between revisions of "Penstemon angustifolius var. angustifolius"
Endemic
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Revision as of 21:24, 27 May 2020
Stems (6–)10–30 cm, glabrous or scabrous. Cauline leaves 2–5(or 6) pairs, blade lanceolate to linear. Thyrses: proximal bracts lanceolate to linear. Flowers: corolla blue, rarely lavender or pink, 14–18 mm. 2n = 16.
Phenology: Flowering May–Jul.
Habitat: Sandy or gravelly soils, shortgrass prairies, sagebrush shrublands.
Elevation: 600–2400 m.
Distribution
Colo., Mont., Nebr., N.Dak., S.Dak., Wyo.
Discussion
Variety angustifolius is known from the northern Great Plains, and it passes into var. caudatus in northeastern Colorado and western Nebraska.
Selected References
None.
Lower Taxa
None.