Flora of North America species comparison

erect, usually simple, 30–150 cm, with short, dense, eglandular pubescence, sparsely so toward base.

erect, simple or branched, 20–65 cm, glandular-pubescent.

sessile, 2 per node;

blade prominently 3–5-veined, ovate-acuminate, round at base, (4–)6–10(–13) cm × (20–)30–50(–90) mm, appressed-pubescent on both surfaces.

proximal forming rosette, blade oblanceolate, spatulate, 3–8(–12) cm × 5–13(–25) mm, apex ± obtuse, sparingly pubescent and glandular;

cauline reduced distally, blade lanceolate, 1–7 cm × 2–15 mm, apex ± acute, sparingly pubescent and glandular.

paniculate, narrow, many-flowered, open, bracteate, pedunculate, 10–50 × 3–5 cm, densely puberulent;

bracts narrowly lanceolate, 3–15 mm, apex acuminate;

peduncle ascending.

dichasiate, open, bracteate;

bracts leaflike, to 15 mm.

ascending, recurved near apex, ca. equaling calyx.

ascending, 1–3(–5) cm, densely glandular-pubescent, viscid.

nocturnal;

calyx prominently 10-veined, tubular to narrowly campanulate and 6–9 × 3–4 mm in flower, turbinate and 10–12 × 4–5 mm in fruit, narrowed proximally around carpophore, veins parallel, green, broad, with pale commissures, puberulent, sometimes with few glands, lobes triangular-acute, 2–3 mm;

corolla white, clawed, claw equaling calyx, broadened into limb, limb obtriangular, deeply lobed, 7–9 mm, lobes ca. 8, linear, appendages minute;

stamens slightly longer than corolla;

styles 3, ca. 2 times as long as corolla.

calyx prominently 20–25-veined, ovate-conic, 8–12 mm, margins dentate, coarsely pubescent, glandular, lobes erect, narrowly lanceolate, 2–3 mm, margins membranous ca. 1/4 length of calyx;

corolla inconspicuous, cream, purple tinged adaxially, dull orange abaxially, equaling or slightly longer than calyx, limb ovate, 1–3 mm, apex notched, appendages absent, auricles round, small;

stamens shorter than corolla;

stigmas 3, shorter than corolla.

narrowly ovoid, slightly longer than calyx, opening by 3 (splitting into 6) ascending teeth;

carpophore 2–2.5 mm.

tightly enclosed in calyx, ovoid, with narrow opening, opening by 6 triangular teeth ca. 1 mm;

carpophore ca. 1 mm.

dark brown, reniform, 0.8–1.5 mm, shallowly tuberculate.

dark brown to black, rotund, 0.6–1 mm broad, papillate.

= 48.

= 20 (Asia).