Penstemon angustifolius var. venosus

(D. D. Keck) N. H. Holmgren

Brittonia 31: 104. 1979.

Endemic
Basionym: Penstemon angustifolius subsp. venosus D. D. Keck J. Wash. Acad. Sci. 29: 490. 1939
Treatment appears in FNA Volume 17. Treatment on page 115. Mentioned on page 114.
Revision as of 20:24, 27 May 2020 by imported>Volume Importer

Stems 17–65 cm, glabrous. Cauline leaves 5–8 pairs, blade ovate to lanceolate. Thyrses: proximal bracts ovate to lanceolate. Flowers: corolla blue to lavender or pink, 14–17 mm.


Phenology: Flowering Apr–Jun.
Habitat: Sandy soils, blackbrush, sagebrush, and pinyon-juniper woodlands.
Elevation: 1400–2300 m.

Distribution

Ariz., Colo., N.Mex., Utah.

Discussion

Although variety venosus shares many morphologic features with var. caudatus, it generally exhibits more variation in corolla color than var. caudatus, and the varieties are largely allopatric except possibly in north-central New Mexico.

Selected References

None.

Lower Taxa

None.
Craig C. Freeman +
(D. D. Keck) N. H. Holmgren +
Penstemon angustifolius subsp. venosus +
Ariz. +, Colo. +, N.Mex. +  and Utah. +
1400–2300 m. +
Sandy soils, blackbrush, sagebrush, and pinyon-juniper woodlands. +
Flowering Apr–Jun. +
Penstemon angustifolius var. venosus +
Penstemon angustifolius +
variety +