Flora of North America species comparison

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

erect, simple to sparingly branched, leafy, 20–70 cm, glabrous to puberulent, especially distally.

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, sessile or short-petiolate, largest near mid-stem region, reduced and withering proximally, blade elliptic-lanceolate, base cuneate or rounded, apex gradually acuminate and acute, glabrous to puberulent.

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.

cymose, (1–)3–5(–12)-flowered, open, leafy.

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

1/2–21/2 times calyx, apex often becoming deflexed, glabrous to hirsute.

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 green, obscurely 10-veined, broadly tubular to campanulate, ± constricted at base around carpophore with broad umbilicate base, becoming broadly clavate in fruit, 14–17 × 5–9 mm, herbaceous, glabrous or hirsute, veins green, without pale commissures, lobes triangular, 2–3 mm;

corolla white, clawed, claw equaling calyx, expanded distally into 2-lobed limb, limb oblong, 6–7 mm, appendages oblong, 1–1.6 mm, margins ± entire;

stamens short-exserted;

stigmas 3, short-exserted.

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

carpophore absent.

globose, equaling calyx, opening by 3 broad teeth that sometimes split to form 6;

carpophore 5–6 mm.

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

dark brown to black, with grayish bloom, broadly reniform, not winged, 0.7–1 mm, sides with concentric crescents of low tubercles, larger and deeper on outer margins.

= 24.

= 48.