Flora of North America species comparison

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

usually several–many, rarely 1, erect, leafy, 10–55 cm, base often decumbent with marcescent leaf bases, scabrous-puberulent to pubescent, usually ± viscid-glandular distally, rarely densely so.

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.

2 per node;

basal petiolate, blade linear-lanceolate to lanceolate, 3–10 cm × 2–13 mm (including petiole), apex acute, glabrous to scabrous-puberulent or softly pubescent, petiole often ciliate;

cauline sessile or petiolate, connate proximally, reduced distally, blade linear to narrowly lanceolate, 2–10 cm × 2–8 mm.

cymose, 3–15-flowered, bracteate;

cyme open, flowers held on ascending branches;

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

cymose with elongate ascending branches, open, flowers (1–)3 to many, bracteate, bracteolate;

bracts and bracteoles lanceolate, 3–20 mm, apex acuminate.

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

1/4–3 times longer than calyx, scabrous-puberulous to pubescent and 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 10-veined, tubular in flower, ± clavate and contracted around carpophore in fruit, 10–14 × 4–6 mm, margins dentate, veins parallel, green (rarely purplish), with pale commissures, lobes ascending, lanceolate, 2–3 mm, margins usually with obtuse, membranous border, apex spreading, shortly glandular-pubescent, usually viscid;

corolla off-white (greenish) to dusky pink, clawed, claw equaling calyx, limb obovate, 2-lobed, 3–7 mm, shorter than claw, rarely with small lateral teeth, appendages 2, usually lacerate, 1–2 mm;

stamens ca. equaling petals;

styles 3(–4), often much longer than petals.

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

carpophore 1–3 mm.

ovoid-ellipsoid, slightly longer than calyx, opening by 6 (or 8) recurved teeth;

carpophore 2–5 mm.

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

dark reddish brown to black, reniform, ca. 1.5 mm, papillate, with larger papillae around margins.

= 24.

= 48.