Flora of North America species comparison

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

not much- branched, slender, (15–)30–60 cm, sparsely pubescent proximally, viscid-glandular 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.

mostly basal;

blade linear-lanceolate to oblanceolate, 2–8 cm × 2–6(–15) mm (including petiole), base tapered into slender petiole, apex acute to obtuse, subglabrous to glandular-pubescent on both surfaces;

cauline leaves to 4 pairs below inflorescence, narrower than basal leaves, blade usually linear but rarely elliptic-lanceolate.

cymose, 3–15-flowered, bracteate;

cyme open, flowers held on ascending branches;

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

erect, with several short, ascending branches, few-flowered, open, bracteate, shortly pubescent and viscid-glandular;

bracts narrowly lanceolate, 3–10 mm, rigid.

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

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, broadly tubular, umbilicate, moderately or not clavate, narrowed around carpophore, lobed, 12–15 × 4–6 mm, thin and papery, with short glandular-viscid pubescence, veins parallel, usually red pigmented, with pale commissures;

lobes lanceolate, 2–4 mm, apex acute;

petals white, pink, or dingy red, 11/2–2 times calyx, claw equaling calyx, ciliate at base, limb obtriangular, 4–6 mm, deeply divided into 4 linear lobes, appendages 2, conspicuous, laciniate, 2–3 mm, apex rounded;

stamens slightly exserted;

filaments ciliate at base;

styles 3(–4), equaling or longer than stamens.

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

carpophore 1–3 mm.

1-locular, narrowly ovoid, exceeding calyx, opening by 6 (or 8) ascending teeth;

carpophore 3–6 mm.

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

brown, reniform, 1.5–2 mm broad, shallowly tuberculate on both surfaces, papillate around margins.

= 24.

= 48.