Penstemon angustifolius var. angustifolius

Plant Information
Species: 
angustifolius
Species Authority: 
Nutt. ex Pursh
Variety: 
angustifolius
Subgenus: 
Penstemon
Section: 
Coerulei
Habit:
 
herbaceous perennial
Habit Woodiness:
 
herb
Lifespan: 
short-lived
Plant Height - Min: 
1.00dm
Plant Height - Max: 
4.00dm
Habitat Description: 
Sandy plains, prairies, and deserts, from desert shrub vegetation to pinyon-juniper woodlands.
Distribution Range: 
The Dakotas and east Montana, south through the high plains to northeast New Mexico and west across north New Mexico to southeast, central and northeast Utah and northeast Arizona.
Soil Type: 
Sometimes found in sandy soils.
Elevation - Min: 
1500.00m
Elevation - Max: 
1750.00m
Other Notes: 

The two varieties are very distinct from each other, but through var. angustifolius of the northern Great Plains and var. caudatus (A. A. Heller) Rydb. of the southern Great Plains and northern New Mexico, the character differences merge.

First Bloom: 
Late April
Last Bloom: 
June
Chromosome Number: 

2n = 16

References: 

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