Flora of North America species comparison

ascending, decumbent at base, branched, shortly rhizomatous, to 80 cm, softly pubescent, ± glandular, at least distally, rarely subglabrous.

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

sessile at mid and distal stem, petiolate to spatulate proximally;

petiole equaling or longer than blade of basal leaves;

blade ovate to elliptic, 3–13 cm × 10–50 mm (not including petiole), apex acute to acuminate, sparingly pubescent, densely so on abaxial midrib.

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.

dichasial cymes, several- to many-flowered, open, bracteate;

bracts lanceolate, 4–20 × 2–7 mm, herbaceous, softly hairy throughout with long-septate hairs, not glandular, or with some glandular hairs.

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

bracts leaflike, reduced distally.

ascending, 0.2–3 cm, usually shorter than calyx.

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

unisexual, some plants having only staminate flowers, others having only pistillate flowers, 20–25 mm diam.;

calyx 8–12-veined, campanulate, narrowly so in staminate flowers, broadly in pistillate, 10–15 × to 7 mm in flower, 11 mm broad in fruit, herbaceous, margins dentate, softly pubescent, lobes 5, erect, lanceolate, 2–3 mm;

petals bright pink, clawed, claw equaling or longer than calyx, limb spreading horizontally, broadly obovate, unlobed or 2-lobed, to 12 × 12 mm, appendages 4, ca. 1 mm;

stamens and stigmas equaling petal claw;

styles 5.

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.

broadly ovoid to globose, equaling and often splitting calyx, opening by 5 (splitting into 10) revolute teeth;

carpophore absent.

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

carpophore 1–2 mm.

dark brown to black, broadly reniform, plump, 1–1.6 mm, densely and evenly papillate.

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

papillae inflated.

= 24.

= 48.