Penstemon palmeri var. palmeri

Plant Information
Species: 
palmeri
Species Authority: 
A. Gray
Variety: 
palmeri
Subgenus: 
Penstemon
Section: 
Peltanthera
Subsection: 
Peltanthera
Habit:
 
robust herb
Habit Woodiness:
 
herb
Lifespan: 
long-lived
Plant Height - Min: 
5.00dm
Plant Height - Max: 
14.00dm
Habitat Description: 
Blackbrush, sagebrush, Joshua tree, juniper, pinyon-juniper, and ponderosa pine communities, along washes, roadsides and canyon floors, usually where subsurface moisture is available.
Distribution Range: 
East and south Nevada, south to southeast California and northwest and central Arizona and introduced in south Idaho and north Utah. Desert washes and sagebrush-covered slopes, Lower Sonoran Zone; ranges west of Death Valley and in the Providence and New York Mountains, California, north to Nevada, east to Utah and Arizona.
Elevation - Min: 
800.00m
Elevation - Max: 
2500.00m
Other Notes: 

Three varieties of P. palmeri are readily distinguishable by certain key characters. In southern Elko Co. and White Pine Co., Nevada the plants of var. palmeri tend to have larger corollas.

First Bloom: 
March
Last Bloom: 
September
Chromosome Number: 

2n = 32

References: 

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