Flora of North America species comparison

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

ascending, scarcely branched, 8–20(–30) cm, softly pubescent, stipitate-glandular or eglandular, rarely glabrate.

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.

mostly basal, petiolate, 3–12 cm (including petiole);

cauline leaves in 2–4 pairs, those of mid and distal stem sessile, shorter and narrower;

blade narrowly to broadly oblanceolate, base spatulate into winged petiole, apex acute to obtuse, glabrous, puberulent or pilose on both surfaces and frequently stipitate-glandular, at least petioles usually ciliate.

cymose, 3–15-flowered, bracteate;

cyme open, flowers held on ascending branches;

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

(1–)3–15-flowered, open, bracteate;

bracts foliaceous.

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

ascending or erect, 0.2–0.8(–1.5) cm, densely pubescent and frequently stipitate-glandular.

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 usually green, prominently 8–10-veined, in flower narrowly tubular, lobed, narrowed proximally around carpophore, 15–22 × to 5 mm, becoming broader and clavate in fruit, pilose or stipitate-glandular, veins parallel, with pale commissures, lobes round, 1–3 mm, margins usually purple tinged, broad, membranous;

petals spreading, usually bright pink, rarely white, broadly to narrowly obovate, 2 times longer than calyx, base tapered into ciliate claw equaling or slightly longer than calyx, margins entire or shallowly lobed and crenulate, auricles absent, appendages oblong, unlobed, 1.5–2 mm;

stamens equaling claw;

filaments glabrous;

styles 3(–4), ultimately slightly exceeding claw.

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

carpophore 1–3 mm.

ellipsoid to obovoid, 8–10 mm, equaling calyx, opening by 6 (or 8) recurved teeth;

carpophore 5–8 mm.

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

dark brown, reniform-rotund, 1.3–1.5 mm, coarsely and evenly papillate.

= 24.