Penstemon secundiflorus var. versicolor

(Pennell) C. C. Freeman

PhytoKeys 80: 37. 2017.

Endemic
Basionym: Penstemon versicolor Pennell Contr. U.S. Natl. Herb. 20: 358. 1920
Treatment appears in FNA Volume 17. Treatment on page 124.

Cauline leaf blades oblanceolate to ovate or elliptic. Corollas dark blue or violet, glabrous or sparsely white-villous internally abaxially.


Phenology: Flowering May–Jun.
Habitat: Rocky, gravelly, or sandy soils, shortgrass prairies, foothills.
Elevation: 1400–1700 m.

Discussion

Variety versicolor is known from the Arkansas River drainage in south-central Colorado in Baca, Fremont, Las Animas, Otero, and Pueblo counties.

Selected References

None.

Lower Taxa

None.