Penstemon scariosus var. albifluvis

Plant Information

Species:

scariosus

Species Authority:

Pennell

Variety:

albifluvis

Variety Authority:

(England) N.H. Holmgren

Subgenus:

Habroanthus

Section:

Glabri

Habit:

herbaceous perennial

Habit Woodiness:

herb

Lifespan:

long-lived

Plant Height - Min:

1.50dm

Plant Height - Max:

5.00dm

Habitat Description:

Desert shrubs, with sagebrush, shadscale and rabbitbrush, to pinyon and juniper woodlands, and ponderosa pine, aspen, spruce, and fir woods.

Distribution Range:

West-central Uintah County, Utah and adjacent Rio Blanco County, Colorado.

Soil Type:

Oil shale

Elevation - Min:

1500.00m

Elevation - Max:

3000.00m

Other Notes:

"Although P. scariosus exhibits a complex range of variability, the specimens more or less sort into the three weakly recognizable varieties. Each is geographically distinct. The Blue Mountain collections appear consistently to have glandular-pubescent corollas. This is a character found in closely related and sympatric P. subglaber, which differs by its taller growth habit, less scarious calyx-margins, and anthers bearing shorter pubescence. The anther-cells of P. subglaber spread 180 degrees apart from each other, whereas they spread apart at about a 90 degree angle in P. scariosus." (Intermountain Flora - N.H. Holmgren)

First Bloom:

Late May

Last Bloom:

July

References:

Holmgren NH. 1984. Penstemon and Keckiella. In Intermountain Flora, vol. 4. Ed. Arthur Cronquist et al. Bronx: The New York Botanical Garden.