Penstemon concinnus

Stems ascending to erect, 7–18 (–24) cm, retrorsely hairy. Leaves basal and cauline, not leathery, glabrous or sparsely retrorsely hairy on petiole and, rarely, midvein; basal and proximal cauline petiolate, 30–55 (–70) × 2–5 (–8) mm, blade oblanceolate to lanceolate or linear, base tapered, margins entire or obscurely and remotely dentate, apex obtuse to acute; cauline 3–5 pairs, short-petiolate or sessile, 17–60 × 1–5 mm, blade lanceolate to linear, base tapered to clasping, margins entire or remotely dentate, apex acute. Thyrses interrupted or continuous, cylindric, 2–11 cm, axis glandular-pubescent, verticillasters 3–6, cymes 2–6-flowered, 2 per node; proximal bracts lanceolate to linear, 12–55 × 2–9 mm; peduncles and pedicels glandular-pubescent. Flowers: calyx lobes lanceolate, 6–8 × 1–1.4 mm, glandular-pubescent; corolla violet to lavender or purple, with dark violet nectar guides, bilabiate, tubular-funnelform, 8–11 mm, white-lanate internally abaxially, tube 4–5 mm, throat gradually inflated, not constricted at orifice, 3.5–4.5 mm diam., slightly 2-ridged abaxially; stamens included or longer pair reaching orifice or slightly exserted, pollen-sacs opposite, explanate, 0.5–0.9 mm, dehiscing completely, sutures papillate; staminode 6–8 mm, exserted, 0.3–0.4 mm diam., tip recurved to coiled, distal 4–5 mm densely pilose, hairs white or pale-yellow, to 1 mm; style 5–7 mm. Capsules 4–6 × 3–4 mm.

Phenology: Flowering May–Jun.
Habitat: Gravelly soils, desert shrublands, pinyon-juniper woodlands.
Elevation: 1600–2200 m.

Nev., Utah.

Discussion

Penstemon concinnus is known from the Snake Range in Lincoln and White Pine counties, Nevada, and in the Burbank Hills, Needle Range, and Tunnel Spring and Wah Wah mountains in Beaver and Millard counties, Utah.

Selected References

None.

Lower Taxa