Species Identification

Interested in the identification of penstemons? Please select a species then click on submit:

AttributeThe current selection is Penstemon_fremontii
ClassificationPenstemon Habroanthus Glabri
GeneralFremont’s Penstemon Blooms: June.
Anthercells 1.4-1.8 mm long, opening nearly the full length, but leaving small portion closed, black, smooth, nipple-toothed edges on openings.
Staminodeincluded, densely yellow-bearded; fertile stamens reaching the edge to included.
LeavesBasal well developed, 10-12 cm (4-4 ¾”) long, entire, oblanceolate to obtuse, tapering to a stemmed base, cauline ones 3.5-5 cm (<2”) long, also stemless.
Stems0.8-2.5 dm (3-10”) tall, stems ascending or erect, 1 to several rising from a thick crown: herbage retrorsely canescent-puberulent. (dense, backward-growing, ashy hairs).
InflorescenseThyrse of 7-15 verticillasters, narrow, the cymes 5- to 6-flowered, bracts, and stem smooth.
Corolla15-20 mm (3/4-1”) long, flowers on one side of stem, moderately bellied, upper lip arched back and the lower spreading, lips blue, tube violet to white at the base, smooth within and without, including the palate.
Flower Color
Calyx5-6 mm (<1/4”) long, segments narrowly ovate, acute to sharply tipped, and recurved, smooth, thinned edges.
HabitatIn Gambel oak association, pinon/juniper forests and desert areas at about 1600-1800 m (4700-5400’) elevation.
RangeSan Pete Co., Utah in San Pitch Mts. and adj. Wasatch Plateau, Northern Utah, Moffat County, CO and sw WY.