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 or decumbent at base, branched, to 100 cm, finely hirsute, glandular-puberulent 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.

blade hirsute on both surfaces;

basal usually withering by flowering time, petiolate, blade oblong-lanceolate to elliptic;

cauline sessile, reduced into inflorescence, blade lanceolate to elliptic, 3–12 cm × 6–30 mm, 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.

several–many-flowered (fewer in pistillate plants), open, dichasial cymes, bracteate;

bracts much reduced, lanceolate, herbaceous.

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

1–5 cm.

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.

unisexual, some plants having only staminate flowers, others having only pistillate flowers, fragrant, 25–35 mm diam.; in veined staminate plants subsessile to short-pedicellate, in pistillate plants pedicellate;

calyx prominently 10-veined in staminate flowers, 20-veined in pistillate, tubular, becoming ovate in pistillate flowers, 10–20(–24) × 8–15 mm in fruit, margins dentate, hirsute and shortly glandular-pubescent, lobes to 6 mm, broadly ovate with apex obtuse, to lanceolate with apex acuminate;

petals white, broadly obovate, ca. 2 times calyx, limb spreading, unlobed to 2-lobed;

stamens equaling to slightly longer than calyx;

stigmas (4–)5, slightly longer than calyx.

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

carpophore absent.

ovate, ca. equaling calyx, opening by (4–)5, spreading to slightly reflexed, 2-fid teeth;

carpophore 1–2 mm.

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

dark gray-brown, reniform-rotund, plump, ca. 1.5 mm, coarsely tuberculate.

= 24.

= 24.