Flora of North America species comparison

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

erect, simple or several from base, retrorsely puberulent proximally, densely so and viscid distally, with stipitate glands.

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.

blade with stiff, appressed pubescence on both surfaces;

basal petiolate, blade lanceolate to elliptic or oblanceolate, (1.5–)3–10 cm × 4–12 mm (including petiole);

cauline in 2–5 pairs, blade linear to linear-lanceolate, 3–9 cm × 2–7 mm.

cymose, 3–15-flowered, bracteate;

cyme open, flowers held on ascending branches;

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

1–20-flowered, bracteate, strongly viscid-glandular or less densely pubescent, longer hairs sometimes purple-septate;

bracts narrowly lanceolate, thick, 3–15 mm, herbaceous, apex acuminate.

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

stiffly erect, 0.1–5 cm, varying in length within same inflorescence.

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 10-veined, broadly tubular to narrowly ellipsoid, not inflated, 12–18 × 4–8 mm in fruit, 2–3 times as long as broad, membranous between veins, margins dentate with 5 triangular, 1.2–2 mm lobes erect in flower and spreading in fruit, apex acuminate, veins green;

petals off-white to dusky pink or dingy reddish purple, clawed, equaling or to 11/2 times calyx, claw broadened distally, limb not differentiated from claw, narrower than claw, 1–3 mm;

stamens included in calyx;

styles (4–)5, included in calyx.

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

carpophore 1–3 mm.

12–15 mm, equaling calyx (rarely to 11/2 times calyx), opening by (4–)5 spreading teeth.

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

dark brown, not winged, reniform to angular, 0.7–1 mm diam., margins finely papillate;

papillae triangular, slender, longer than broad.

= 24.