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, light brown, cylindric, 3–4 mm, margins oblique, base fringed with reflexed hairs and slender bristles, face glabrous or puberulent;

petiole 1–6 cm, retrorsely pubescent;

blade cordate-ovate, cordate-hastate, or cordate-sagittate, 2–6(–12) × 2–5(–10) cm, base cordate, margins wavy, often reddish-ciliate, apex acute to acuminate, abaxial face pilose-hispid, not 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.

terminal and axillary, erect or spreading, paniclelike, 4–10(–15) cm, axes reddish-pilose;

peduncle 1–12 cm, retrorsely pubescent.

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

ascending or spreading, articulated near middle or distally, 3–4 mm, glabrous or puberulent.

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, 4–7 per ocreate fascicle;

perianth nonaccrescent, greenish white to white, 1.5–2 mm including stipelike base, glabrous;

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

stamens 6–8;

filaments flattened proximally, pubescent proximally;

styles connate basally;

stigmas capitate.

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 or exserted, brownish black to black, 3–4 × 1.8–2.4 mm, shiny, smooth; fruiting perianth glabrous, wings absent.

= 40.

= 22.