Penstemon attenuatus var. pseudoprocerus

Plant Information

Species:

attenuatus

Species Authority:

Douglas ex Lindl.

Variety:

pseudoprocerus

Variety Authority:

(Rydb.) Cronquist

Subgenus:

Penstemon

Section:

Penstemon

Subsection:

Proceri

Habit:

herbaceous perennial

Habit Woodiness:

herb

Lifespan:

long-lived

Plant Height - Min:

1.00dm

Plant Height - Max:

4.00dm

Habitat Description:

Dry to moderately moist rocky slopes from sagebrush foothills to open subalpine woods and meadows.

Distribution Range:

Southwest Montana, east Idaho, and northwest Wyoming; possibly entering our region in the northeast Snake River Plains.

Soil Type:

Dry to moderately moist soils.

Elevation - Min:

1700.00m

Elevation - Max:

2500.00m

Other Notes:

Varieties of Penstemon attenuatus are hypothesized to be of hybrid origin, with P. concertus involved with var. attenuatus and var. palustris. Penstemon albertinus may be involved in the origin of all varieties. Penstemon globosus may be involved in the formation of var. militaris.

First Bloom:

June

Last Bloom:

August

Chromosome Number:

2n = 24, 48

References:

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