Penstemon pseudoputus
Brittonia 31: 106. 1979.
Stems ascending to erect, (8–)15–50 cm, retrorsely hairy, not glaucous. Leaves basal and cauline, basal sometimes absent, not leathery, retrorsely hairy, not glaucous; basal and proximal cauline 16–60(–80) × 1–3(–4) mm, blade linear, base tapered, margins entire, apex obtuse to acute; cauline 6–11 pairs, sessile, (2–)10–75 × (0.2–)0.5–3 mm, blade linear, base tapered, apex acuminate. Thyrses interrupted, secund, (2–)5–25 cm, axis glabrous or puberulent, verticillasters 3–10, cymes 1- or 2-flowered, 1 or 2 per node; proximal bracts linear, 4–30 × 0.5–2 mm; peduncles and pedicels glabrous or puberulent. Flowers: calyx lobes ovate, sometimes obovate or truncate, 3–4.5(–5) × 1.5–2.4 mm, glabrous or sparsely puberulent; corolla bluish violet to violet, lavender, or purple, with reddish purple nectar guides, ventricose, 17–23 mm, glabrous externally, glabrous internally, tube 5–7 mm, throat gradually inflated, slightly constricted at orifice, (5–)7–9 mm diam., rounded abaxially; stamens: longer pair exserted, pollen sacs opposite, navicular, 1.2–1.5 mm, dehiscing incompletely, connective not splitting, sides glabrous, sutures papillate; staminode 12–14 mm, exserted, 0.5–0.8 mm diam., tip straight to recurved, glabrous; style 13–17 mm. Capsules 7–14 × 4–5 mm.
Phenology: Flowering Jul–Aug.
Habitat: Subalpine meadows, pine forests.
Elevation: 2000–2900 m.
Discussion
Penstemon pseudoputus is known from the Kaibab and Walhalla plateaus of northern Coconino County, Arizona, with apparently isolated populations in Markagunt Plateau in eastern Garfield and eastern Kane counties in southwestern Utah.
Selected References
None.