Penstemon gairdneri var. gairdneri

IllustratedEndemic
Synonyms: Penstemon gairdneri subsp. hians (Piper) D. D. Keck
Treatment appears in FNA Volume 17. Treatment on page 204. Mentioned on page 201.

Stems 6–20(–35) cm. Leaves alternate.


Phenology: Flowering (Apr–)May–Jun.
Habitat: Rock outcrops, sagebrush shrublands, prairies.
Elevation: 100–1800 m.

Discussion

D. D. Keck (1940b) recognized three subspecies of Penstemon gairdneri: subsp. gairdneri, subsp. hians, and subsp. oreganus. He distinguished the two alternate-leaved subspecies (subsp. gairdneri and subsp. hians) on the basis of corolla color (rose purple versus lavender-purple with blue limb, respectively) and limb size (15–20 mm diam. versus 12–14 mm diam., respectively), acknowledging considerable variation in limb size in the former.

Variety gairdneri occurs in eastern Oregon and central Washington. Its range overlaps with that of var. oreganus in southeastern Oregon.

Selected References

None.

Lower Taxa

None.