Flora of North America species comparison

simple, 5–15 cm, pubescent and viscid, with stipitate glands.

several, erect, freely branched, leafy, elongate, 30–80 cm, scabrid-puberulent and glandular-viscid.

basal with blade 1-veined, oblanceolate, broadly spatulate, 1–4 cm × 2–8 mm, apex obtuse to acute, glandular-puberulent throughout, rarely subglabrous adaxially;

cauline in 3–6 pairs, sessile, reduced distally, blade lanceolate, narrowly elliptic, or oblanceolate, 2–4 cm × 2–8 mm, apex ± acute, glandular-puberulent throughout.

2 per node;

basal long-petiolate, blade oblanceolate, (2–)5–18 cm × 5–30 mm, base narrowed into petiole, apex ± acute, glandular-puberulent on both surfaces;

cauline not greatly reduced in distal stem, blade 5–15 cm × 10–20 mm, viscid glandular-pubescent, sparsely so in shade forms, proximal petiolate and blade oblanceolate, distal sessile and blade lanceolate, apex acute.

usually with solitary terminal flower, sometimes cymose, to 8-flowered, open.

open, elongate, dichotomously branched, branches ascending, bracteate;

bracts leaflike, reduced distally.

erect or angled near tip with flowers slightly nodding, 1–3 times longer than calyx, glandular-puberulent, often densely so.

ascending, may be partially deflexed, rather slender, longer than calyx, viscid glandular-pubescent with septate hairs, septa colorless.

calyx prominently 10-veined, campanulate, not contracted proximally around carpophore, 15–20 × 4–8 mm, papery, margins dentate, veins parallel, usually purple tinged, with pale commissures;

lobes ovate, 3–5 mm, glandular-puberulent, midrib triangular, margins purple tinged, broad, membranous, apex obtuse;

corolla bright pink, clawed, claw equaling calyx, broad and ligulate but abruptly contracted into limb, limb broadly cuneate, shallowly to deeply 2–4-lobed, 5–15 mm, lobes broad or narrow, appendages absent or to 2 mm, margins erose;

stamens slightly longer than corolla claw;

stigmas 3(–5), slightly longer than corolla claw.

calyx prominently 10-veined, tubular in flower, 8–12 × 2–4 mm, swelling to campanulate and 5–7 mm broad in fruit, not contracted proximally around carpophore, viscid glandular-pubescent, especially on veins, veins parallel, green, with pale commissures, those to lobes broadened distally, lobes erect, narrowly lanceolate, 3–4 mm, rigid, setose-scabrous, glandular-viscid, apex recurved;

corolla greenish white, claw equaling calyx, limb 2-lobed, ca. 3 mm, appendages ca. 0.5 mm, margins erose;

stamens equaling petals;

styles 3, equaling petals.

equaling calyx, opening by 6 (or 8 or 10) lanceolate teeth;

carpophore 1–2.5 mm.

slightly exserted from calyx, narrowly ovoid, opening by 6 teeth;

carpophore 1–2 mm.

brown, broadly reniform, flattened, 2–2.5 mm, rugose, more coarsely so on margins.

almost black, ellipsoid-reniform, ca. 1 mm, coarsely papillate;

papillae inflated.

= 96.

= 48.