Flora of North America species comparison

erect, simple proximal to inflorescence or with few basal branches, branched distally, to 75 cm.

erect, simple or with ascending branches, (20–)40–100 cm, coarsely puberulent, stipitate-glandular, viscid distally.

2 per node, gradually reduced distally;

basal blades oblanceolate, 6–12(–14) cm × 20–45 mm;

cauline blades ascending, conspicuously veined, broadly elliptic to lanceolate, 1–11 cm × 3–40 mm, apex acute, shortly acuminate, densely pubescent on both surfaces.

mid and proximal stem pairs connate, blade 1–several-veined, oblanceolate to narrowly lanceolate, (3–)5–12 cm × (3–)8–15 mm, apex acute, veins parallel;

basal leaf blades oblanceolate and ± obtuse, sparsely to moderately puberulent on both surfaces, rarely subglabrous.

cymose, 3–15-flowered, bracteate;

cyme open, flowers held on ascending branches;

bracts leaflike, narrowly lanceolate, 1–5 cm, apex acuminate.

several–many-flowered, open, bracteate;

bracts resembling leaves but smaller.

ascending, straight, 1/3–3 times longer than calyx.

ascending, straight, equaling or longer than calyx, densely stipitate-glandular, viscid.

nocturnal, 20–25 mm diam.;

calyx prominently 10-veined, ovate-elliptic, fusiform, narrowed to both ends and constricted around carpophore, 15–24(–40) × ca. 3 mm in flower, swelling to 10 mm diam. in fruit, thin and papery, margins dentate, with pale commissures;

lobes erect, often recurved in fruit, linear-lanceolate, long, narrow, (3–)5–10(–15) mm, apex acuminate, short-pubescent, glandular, interspersed with long eglandular hairs, veins anastomosing;

corolla white, often pink tinged, clawed, claw equaling calyx lobes, limb deeply 2-lobed, lobes usually narrow, appendages 0.5–1.5 mm broad, margins entire or erose;

stamens shorter than petals;

styles 3, shorter than petals.

calyx prominently 25–30-veined, lobed to 1/3 its length but splitting further in fruit, umbilicate, narrowly conic in flower, conic-ovoid and inflated in fruit, 20–30 × to 15 mm, margins dentate, puberulent and stipitate-glandular, lobes 5, lanceolate, narrow, acuminate, veins parallel;

corolla deep pink, clawed, claw equaling or longer than calyx, limb slightly lobed or unlobed, broadly obovate, spatulate, 8–12 mm, appendages 2–4 mm, lobed or dentate;

stamens equaling claw;

stigmas 3, equaling claw.

ovoid, constricted at mouth, equaling or slightly longer than calyx tube, opening by 6 recurved teeth;

carpophore 1–3 mm.

flask-shaped, 15–20 mm, opening by 6 recurved, lanceolate teeth;

carpophore to 2 mm.

dark brown to black, with gray bloom, broadly reniform, 0.8–1 mm, strongly tuberculate.

brown, reniform, 1.2–1.8 mm broad, tuberculate.

= 24.

= 20, 24 (Europe, Asia).