Flora of North America species comparison

ascending or erect, green or striped with pink or red, branched, (7–)15–90 cm.

erect or ascending, glabrous or puberulent.

ocrea brownish hyaline, loose, funnelform, 2–8 mm, margins truncate, eciliate, glabrous or puberulent proximally;

petiole 1.5–6(–9) cm, usually puberulent adaxially;

blade palmately veined with 7–9 primary basal veins, hastate-triangular, sagittate-triangular, or cordate, 2.5–8 × 2–8 cm, base truncate or cordate to sagittate, margins ciliolate, apex acute to acuminate.

deciduous, cauline, alternate, petiolate (proximal leaves) or sessile (distal leaves);

ocrea persistent or deciduous, chartaceous;

petiole base articulated;

blade cordate, triangular, hastate, or sagittate, margins entire to sinuate.

terminal and axillary, paniclelike, 1–4 cm, usually crowded at stem apices;

peduncle 0.5–4 cm, puberulent in lines.

axillary, or terminal and axillary, racemelike or paniclelike, pedunculate.

ascending or recurved, 2.5–4 mm.

present.

chasmogamous, heterostylous [homostylous];

perianths creamy white to pale pink;

tepals elliptic to obovate, (2.5–)3–5 mm, margins entire, apex obtuse to acute;

stamens ca. 1/2 as long as or slightly longer than perianth;

styles 1.5–2 mm or 0.5–1 mm;

stigmas purplish.

bisexual or, rarely, bisexual and staminate on same plant, 2–6 per ocreate fascicle, heterostylous or homostylous, base stipelike;

perianth nonaccrescent, white, pale pink, or green, broadly campanulate, glabrous;

tepals 5, distinct, petaloid, dimorphic, outer smaller than inner;

stamens 8;

filaments distinct, free, glabrous;

anthers white, pink, or red, oval to elliptic;

styles 3, reflexed, distinct;

stigmas capitate.

uniformly light brown or streaked with dark brown or black, sharply 3-gonous, 4–6 × 4–6 mm, faces smooth, angles prominent, unwinged or essentially so, smooth or occasionally with blunt tooth in proximal 1/3.

strongly exserted, brown to dark brown or gray, sometimes mottled black, unwinged or essentially so, bluntly to sharply 3-gonous, glabrous.

embryo folded.

= 8.

= 16 (China).