Species Identification

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

AttributeThe current selection is Penstemon_confusus
ClassificationPenstemon Penstemon Peltanthera Centranthifolii
GeneralPuzzling Penstemon This species is similar to P. utahensis, but shorter and flowers are smaller, red-violet or rose-lavender with guidelines and arranged in few-flowered whorls. Blooms: April to June.
Anther0.9-1.2 mm, opening the full length and becoming opposite, not or only slightly flat, essentially smooth.
StaminodeIncluded, expanded at base and uncinate (an indentation at tip), white to pale yellow, glabrous or with short golden-yellow-toothlike hairs at the tip, fertile stamens.
LeavesBasal ones 3-6 cm (1-2 ) long, oblanceolate, tapering to a petiolar (stemmed) base; the cauline ones 1.5-4 cm (1/2-1 ) long, linear to lanceolate, stemless, gray- green.
StemsPerennial herb, 0.6-3 dm (3-12 tall, with well developed basal leaves; stems erect, tall, single to few arising from a thick crown or short-branched, woody caudex; herbage glabrous (hairless) and glaucous (bluish), often turning dark on drying.
InflorescenseThyrse of 3-8 verticillasters, the cymes 1-5 flowered, glabrous, symmetrical to subsecund (almost all one-sided).
Corolla14-18 mm (about ) long, lobes violet to magenta, the throat pale pink to white inside with red or violet guide-lines, tubular-salverform to slightly bell-like, the throat rounded to somewhat 2-ridged ventrally, the lobes subequal, spreading, and the upper lip spreading forward and the lower reflexed, glandular-puberulent (sticky, downy) inside the lips, throat and on the outside or smooth.
Flower Colorpurple
Calyx4-6 mm (1/4) long, sepals broadly ovate, acuminate, glabrous, the edges papery, and often anthocyanous (bluish).
HabitatUsually with sagebrush in pinyon-juniper woodlands in dry, gravelly (often limestone) soils, 1700-2200 m (5700-7300) elev.
RangeEastern NV in w Nye, White Pine, Lincoln and Clark Cos., and sw UT from Juan to Washington Cos., e to UT, Paiute and Sevier Cos., Inyo Co., e CA.
Penstemon confusus, Sacramento Pass