Penstemon multiflorus

(Bentham) Chapman ex Small

Fl. S.E. U.S., 1061. 1903. (as Pentstemon)

Common names: Many-flower beardtongue
Basionym: Penstemon pubescens var. multiflorus Bentham in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 10: 327. 1846
Treatment appears in FNA Volume 17. Treatment on page 212. Mentioned on page 144, 184.

Herbs. Stems ascending to erect, (37–)80–150 cm, glabrous, not glaucous. Leaves basal and cauline, not leathery, glabrous; basal and proximal cauline 65–160 × 15–40 mm, blade oblanceolate, base tapered, margins entire or slightly crenulate, apex acute; cauline 3–8 pairs, short-petiolate or sessile, (16–)40–170 × (5–)12–35 mm, blade lanceolate, base tapered to clasping, margins entire, apex acute. Thyrses interrupted, conic, 22–35(–60) cm, axis glabrous or sparsely glandular-pubescent distally, verticillasters 3–8, cymes 5–19-flowered, 2 per node; proximal bracts lanceolate, 8–47(–60) × 3–16(–25) mm, margins entire; peduncles and pedicels ascending, glabrous or sparsely glandular-pubescent. Flowers: calyx lobes ovate, 3–5 × 1–2 mm, glandular-pubescent; corolla white to light lavender, without nectar guides, funnelform, 20–22 mm, glandular-pubescent externally, glabrous internally, tube 5–6 mm, throat abruptly inflated, 5–6 mm diam., 2-ridged abaxially; stamens included, pollen sacs parallel, saccate, 0.8–1 mm, dehiscing incompletely, distal 2/3 indehiscent, connective splitting, sides glabrous, sutures papillate; staminode 10–13 mm, exserted, 0.3–0.5 mm diam., tip straight to recurved, distal 3–4 mm sparsely pubescent, hairs yellowish, to 0.3 mm; style 7–10 mm. Capsules 5–8 × 4–5 mm, glabrous.

Phenology: Flowering Mar–Jul(–Aug).
Habitat: Sandy pinelands, sandy scrublands.
Elevation: 0–100 m.


Penstemon multiflorus occurs in the Coastal Plain throughout Florida and in southern Alabama and southern Georgia.

Selected References


Lower Taxa