Flora of North America species comparison

numerous, erect, simple, 3–15 cm, pubescent, viscid-glandular distally.

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

mostly basal, densely tufted;

basal numerous, pseudopetiolate, blade narrowly oblanceolate, tapering into base, 0.5–3 cm × 1.5–4 mm, ± fleshy, apex acute, puberulent;

cauline in 1–3 pairs, ± sessile, reduced, blade narrowly oblanceolate to linear-lanceolate, 0.7–2 cm × 1–3 mm, apex acute, puberulent.

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.

flowers terminal, solitary, or in single dichotomy, bracteate;

bracts leaflike, 3–15 mm.

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

erect, ca. equaling calyx, viscid glandular-pubescent, hairs with purple septa.

calyx prominently 10-veined, campanulate, not contracted proximally around carpophore, 10–15 × 5–7 mm, papery, veins parallel, purplish, with pale commissures, with purple-septate glandular hairs (rarely septa not purple), lobes ovate, ca. 2 mm, margins broad, membranous, apex obtuse;

corolla off-white or tinged with dusky purple, clawed, claw equaling calyx, broadened distally, limb 2-lobed, 3–5 mm, appendages ca. 1 mm;

stamens equaling calyx;

styles 3(–4), equaling calyx.

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.

equaling calyx, opening by 6 (or 8) teeth;

carpophore 2.5–3.5 mm.

equaling calyx, opening by 6 teeth;

carpophore less than 1 mm.

brown, broadly winged, reniform, 1–2 mm, rugose-tessellate.

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

= 48.

= 24.