Flora of North America species comparison

ocrea persistent or deciduous, tan or greenish brown, cylindric, 2–4 mm, margins oblique, face not fringed with reflexed hairs and slender bristles at base, otherwise glabrous or scabrid;

petiole 0.5–5 cm, puberulent in lines;

blade cordate-ovate, cordate-hastate, or sagittate, 2–6(–15) × 2–5(–10) cm, base cordate, margins wavy, scabrid, apex acuminate, abaxial face usually mealy and, rarely, minutely dotted, not glaucous, adaxial face glabrous.

ocrea usually deciduous, hyaline or brownish, cylindric, 3–8 mm, margins truncate to oblique, face glabrous throughout;

petiole 1–4 cm, glabrous or scabrid;

blade narrowly ovate to ovate-oblong, 3–10 × 1–5 cm, base subcordate or cordate to sagittate, margins entire or wavy, glabrous or scabrid, apex obtuse to acuminate, abaxial face glabrous or scabrid along midvein, rarely minutely dotted, not glaucous, adaxial face glabrous.

axillary, erect or spreading, spikelike, 2–10(–15) cm, axes puberulent;

peduncle 0.1–10 cm or absent, glabrous or scabrid distally in lines.

axillary and terminal, spreading or drooping, paniclelike, 3–15 cm, axes glabrous or papillate to scabrid in lines;

peduncle 1–3 cm, glabrous or scabrid.

ascending or spreading, articulated distally, 1–3 mm, glabrous or, rarely, scabrid.

ascending or spreading, articulated proximal to middle, 1.5–4 mm, glabrous or scabrid.

bisexual, 3–6 per ocreate fascicle;

perianth nonaccrescent, greenish white, often with pinkish or purplish base, 3–5 mm including stipelike base, glabrous or outer 3 with blunt, hyaline hairs;

tepals elliptic to obovate, apex obtuse to acute, outer 3 obscurely keeled;

stamens 8;

filaments flattened proximally, glabrous;

styles connate distally;

stigmas capitate.

bisexual, 3–6 per ocreate fascicle;

perianth accrescent in fruit, greenish white with white wings or mostly pink, sometimes bright pink in fruit, 5–8 mm including stipelike base, glabrous;

tepals elliptic, apex obtuse to rounded, outer 3 winged;

stamens 6–8;

filaments flattened proximally, pubescent proximally;

styles connate basally;

stigmas peltate.

included, black, 4–5(–6) × 1.8–2.3 mm, dull, minutely granular-tuberculate, especially on faces; fruiting perianth glabrous or with blunt, hyaline hairs, wings absent or, rarely, flat to undulate, 0.4–0.9 mm wide at maturity, scarcely decurrent on stipelike base, margins entire.

included, dark brown to black, 2–4 × 1.8–2.2 mm, shiny, smooth; fruiting perianth glabrous, wings flat to undulate, 2–4 mm wide at maturity, decurrent on stipelike base nearly to articulation, margins entire.

, perennial, not rhizomatous, 3–10 m. Stems climbing, branched from near base, woody, glabrous, not glaucous.

= 40.

= 20 (Korea).