Penstemon spatulatus

Pennell

Notul. Nat. Acad. Nat. Sci. Philadelphia 71: 10. 1941.

Common names: Wallowa beardtongue
Endemic
Treatment appears in FNA Volume 17. Treatment on page 222. Mentioned on page 190.

Herbs. Stems ascending to erect, 6–26 cm, retrorsely hairy or glabrate, not glaucous. Leaves basal and cauline, ± leathery or not, glabrous or puberulent proximally on petiole and along midvein abaxially; basal and proximal cauline 10–60 × 3–18 mm, blade spatulate to elliptic, base tapered, margins entire, sometimes ± serrulate distally, apex rounded to obtuse or acute; cauline 1–3 pairs, sessile, 14–35 × 2–8 mm, blade lanceolate, sometimes oblanceolate, base truncate, margins entire, rarely ± serrulate distally, apex obtuse to acute. Thyrses interrupted, cylindric, 1–13 cm, axis moderately glandular-pubescent, verticillasters 1–5, cymes 2–5-flowered, 2 per node; proximal bracts lanceolate, 8–30 × 2–7 mm, margins entire; peduncles and pedicels ascending to erect, glandular-pubescent. Flowers: calyx lobes ovate to lanceolate, 2.6–4.8 × 1–1.8 mm, glandular-pubescent; corolla light blue to light purple, with violet nectar guides, funnelform, 10–14 mm, glandular-pubescent externally, moderately white- or yellowish lanate internally abaxially, tube 4–5 mm, throat slightly inflated, 3.5–4.5 mm diam., 2-ridged abaxially; stamens included, pollen sacs opposite, navicular to subexplanate, 0.6–0.8 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate; staminode 6–7 mm, included, 0.3–0.4 mm diam., tip recurved, distal 0.5–1.5 mm densely pilose, hairs yellow, to 0.7 mm; style 8–10 mm. Capsules 4–6 × 2.5–4 mm, glabrous.


Phenology: Flowering Jul–Aug.
Habitat: Open rocky slopes, meadows.
Elevation: 2300–2500 m.

Discussion

Penstemon spatulatus is known only from the Strawberry and Wallowa mountains of northeastern Oregon.

Selected References

None.

Lower Taxa

None.