Penstemon bleaklyi

O’Kane & K. D. Heil

Phytoneuron 2014-61: 1, figs. 1–3. 2014.

Common names: Bleakly’s beardtongue
EndemicConservation concern
Treatment appears in FNA Volume 17. Treatment on page 196. Mentioned on page 187.

Herbs. Stems decumbent to ascending, 2–8 cm, retrorsely hairy, not glaucous. Leaves basal and cauline, not leathery, glabrous; basal and proximal cauline 15–35 × 4–15 mm, blade lanceolate to elliptic or oblanceolate, base tapered, margins entire or serrulate, apex obtuse to acute; cauline 3–7 pairs, petiolate, 10–20 × 3–5 mm, blade lanceolate to linear-lanceolate, base tapered to cuneate, margins entire or serrulate, apex obtuse to acute. Thyrses continuous, ± secund, 1–3 cm, axis glandular-pubescent, verticillasters 1 or 2, cymes (1 or)2- or 3-flowered, 1 or 2 per node; proximal bracts lanceolate, 10–20 × 4–8 mm, margins entire; peduncles and pedicels ascending to erect, glandular-pubescent. Flowers: calyx lobes lanceolate, 5–8 × 0.8–1.2 mm, glandular-pubescent; corolla bluish lavender to lavender-purple, with violet nectar guides, tubular-funnelform, 12–25 mm, glandular-pubescent externally, densely white-lanate internally abaxially, tube 4–6 mm, throat gradually inflated, 6–8 mm diam., scarcely 2-ridged abaxially; stamens included, pollen sacs opposite, subexplanate, 1.1–1.3 mm, dehiscing completely, connective splitting, sides sparsely puberulent, sutures smooth; staminode 14–15 mm, exserted, 0.3–0.4 mm diam., tip slightly recurved, distal 0.8–1 mm sparsely lanate, hairs yellow, to 0.4 mm; styles 10–15 mm. Capsules 4–7 × 3–5 mm, glabrous.

Phenology: Flowering Jul.
Habitat: Alpine scree slopes.
Elevation: 3800–3900 m.


Penstemon bleaklyi is known only from the Culebra Range of the Sangre de Cristo Mountains in Taos County.

Selected References


Lower Taxa