Flora of North America species comparison

erect, simple or branched, slender, to 80 cm, subglabrous to retrorsely puberulent especially proximally, distal internodes frequently glutinous.

erect, simple, 5–35 cm, glabrous or very sparsely short-pubescent.

2 per node;

blade with margins ciliate toward base, apex acute to obtuse;

basal blades oblanceolate, spatulate;

cauline narrowly oblanceolate to linear, 1–9 cm × 2–15 mm, scabrous or puberulent, rarely glabrous on both surfaces.

basal crowded, blade narrowly oblanceolate, 1–5 cm × 1–5 mm, tapered into broad ciliate base, apex acute;

cauline in 2–5 pairs, sessile, connate proximally, blade narrowly lanceolate, 1–4 cm × 2–7 mm, margins ciliate, apex acute.

cymose, open, branches usually ascending, several- to many-flowered, 1-flowered in depauperate specimens.

cymose, congested, 6–30-flowered, bracteate, pedunculate, often with smaller pedunculate branches in distal nodes;

bracts purple, lanceolate, 2–20 mm;

peduncle glabrous to sparsely puberulent.

glabrous to sparsely puberulent.

mature calyx prominently 10-veined, campanulate to ovate, 5–9 × 3–5 mm, margins dentate, glabrous, veins parallel, with pale commissures;

lobes usually purple, triangular, acute, ca. 1 mm;

petals white, often suffused with dark red, rarely wholly dark red, limb ovate, usually 2-lobed, ca. 2.5 mm, slightly longer than calyx, rarely petals absent, claw narrow, appendages 0.1–0.4 mm;

stamens included;

styles 3;

stigmas included.

sessile or short-petiolate, 5–10 mm diam.;

calyx purple, faintly 10-veined, campanulate, 4–6 × 3–5 mm, base attenuate into pedicel, lobes ovate, 1–1.5 mm, margins broad, membranous, apex obtuse;

corolla bright pink (rarely white), limb spreading, 2-lobed to middle, 3.5–7 mm, cuneate into claw, ca. 11/4–11/2 times calyx, appendages absent;

stamens ca. equaling petals;

stigmas 5, ca. equaling petals.

equaling calyx, opening by 6 teeth;

carpophore less than 1 mm.

ovoid, equaling to slightly longer than calyx, opening by 5 recurved teeth;

carpophore ca. 1 mm.

dull gray-black, reniform, 0.5–0.8 mm diam., finely papillate.

dark brown, reniform, 0.5–0.8 mm, verrucate with crescent-shaped pattern.

= 24.

= 24.