Illustrator: John Myers

Copyright: Flora of North America Association

Flowers: corolla white, 9–15 mm.

Phenology: Flowering Jun–Aug.
Habitat: Sandy or gravelly grasslands, sagebrush shrublands.
Elevation: 1500–2900 m.

Distribution

• Generated Map
• Legacy Map

Colo., Wyo.

Discussion

Variety exilifolius is concentrated in the Laramie Basin of Wyoming and Laramie River Valley of northwestern Larimer County, Colorado. Other isolated populations are known in Wyoming (B. L. Heidel and J. Handley 2007). A specimen from southern Montana, reported by Heidel and Handley, could be this variety; the specimen has not been seen for this study.

Selected References

Heidel, B. L. and J. Handley. 2007. Penstemon laricifolius Hook. & Arn. Ssp. exilifolius (A. Nels.) D. D. Keck (Larchleaf Beardtongue): A Technical Conservation Assessment. Laramie.

Lower Taxa

None.