Flora of North America species comparison

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

erect, simple proximal to inflorescence, 25–80 cm, puberulent, glandular distally.

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.

in 5–7 pairs proximal to inflorescence, sessile, blade lanceolate, narrowed to base, apex acute;

proximal withering, becoming smaller in inflorescence, 2–5 cm × 3–10 mm, sparsely scabrous-pubescent on both surfaces.

dichasiate, open, bracteate;

bracts leaflike, to 15 mm.

cymose, terminal, pedunculate, 1–3-flowered, open, bracteate, bracteolate, 10–25 cm, pubescence dense, hairs septate-glandular, septa colorless;

cymes paired at each node;

peduncle ascending, 1–3 cm;

bracts and bracteoles leaflike, reduced distally to 2 mm.

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

not bent in fruit, 1/2 to equaling calyx.

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.

nocturnal;

calyx prominently 10-veined, campanulate, 12–14 × 4–6 mm in flower, becoming obovate to obconic and to 10 mm broad in fruit, not contracted proximally around carpophore, margins dentate, glandular-pubescent, veins parallel, with pale commissures, lobes lanceolate-acuminate, 3–4 mm, membranous, margins narrow, apex blunt, veins green;

corolla pale pink, greenish abaxially, clawed, claw equaling calyx, limb oblong, deeply 2-lobed, 4–6 mm, appendages 2, oblong, ca. 1 mm;

stamens equaling petals;

stigmas 3, equaling petals.

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

carpophore ca. 1 mm.

obovoid, equaling calyx and often splitting it at maturity, opening by 5 teeth;

carpophore 3–4 mm.

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

black, reniform, 2–3 mm, tuberculate;

tubercles conic, in concentric rows.

= 20 (Asia).

= 48.