Species Identification

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AttributeThe current selection is Penstemon_duchesnensis
ClassificationPenstemon Penstemon Cristati
GeneralDuchesne Penstemon [syn: P. dolius var. duschesnensis N. H. Holmgren, 1979] Blooms: May and June.
Anther0.9-1.2 mm, opening the full length, widely spreading, but not flat, smooth except for the nipple-toothed edges.
StaminodeIncluded to nearly excluded, densely orange-bearded in the distal half and sparsely bearded along its length; fertile stamens included.
Leaves1-3 cm (3/8-1) long & 2-7 mm (to ) wide, the basal ones narrowly spatulate or narrowly oblanceolate, narrowing to a winged petiole (widened stem) the stem leaves narrowly lanceolate, stemless.
StemsSmall perennial herb, 0.3-0.7 mm (1-2 ) tall, from a woody, sometimes branched caudex, this surmounting a thick, woody taproot; herbage densely retrorsely cinereus-puberulent, the leaves often drying brown, stems prostate, decumbent, ascending, or erect
InflorescenseThyrse compressed, the cymes few-flowered, leafy-bracted, the axis, peduncles, pedicels and calyces retrorsely cinereus-puberulent.
Corolla15-21 mm (1/2-5/8) long, lips blue to purplish blue, the throat white within, the tube pale violet, moderately pouched, throat 2-ridged beneath, the upper lip arched, the lobes of lower lip spreading, all 5 lobes orbicular and overlapping, the corolla glandular-pubescent (sticky-hairy) externally, smooth within except for the sparsely bearded palate.
Flower Color
Calyx5-9 mm (3/8- 5/8) long, the segments narrowly lanceolate to lanceolate, acute, and the margins herbaceous.
HabitatDry, gravelly, sandy or clay soil hills in sagebrush and pinyon-juniper woodlands, 1500-1770 m (5000-5900) elev.
RangeWestern Uinta Basin in the vicinity of Duchesne, Duchesne Co., UT.