Penstemon diphyllus

Plant Information

Species:

diphyllus

Species Authority:

Rydb.

Subgenus:

Saccanthera

Section:

Saccanthera

Subsection:

Serrulati

Habit:

subshrub

Habit Woodiness:

suffrutescent

Lifespan:

long-lived

Plant Height - Min:

2.00dm

Plant Height - Max:

3.00dm

Habitat Description:

Grows in rocky woods.

Distribution Range:

Mullen Pass, Soap Gulch, Silver Bow County, Montana.

Elevation - Min:

1300.00m

Elevation - Max:

2000.00m

Other Notes:

Nearest related to P. triphyllus, and Dr. Gray included in the latter Cooper's rather fragmentary specimens. It is, however, a very distinct species, differing in the more leafy and more branched habit, the broader and opposite leaves, and the narrower and less bearded sterile stamen.

First Bloom:

June

Last Bloom:

August

References:

McGregor LR, Barkley TM. 1986. Flora of the Great Plains. Lawrence, Kansas: University Press of Kansas.