Flora of North America species comparison

ribbed, tomentose.

ribbed, glabrous.

blade ovate to reniform, 9-20 × 8-15 cm, base cordate, sinus depth 1-2 cm, apex obtuse to acute;

surfaces abaxially tomentose;

venation palmate-pinnate.

blade reniform, 7-34 × 10-35 cm, base cordate, sinus depth 1-4.5 cm, apex obtuse to acute or acuminate;

surfaces abaxially glabrous to slightly puberulent;

venation palmate-pinnate.

on new growth, axillary, solitary flowers;

peduncle not bracteolate, 1-7 cm.

on new growth, axillary, solitary flowers;

peduncle bracteolate, 3-7 cm;

bracteoles reniform, to 15 mm.

calyx yellow-green, sharply bent;

utricle pendent, globose to cylindric, 0.5-1 × 0.5-0.8 cm;

syrinx absent;

tube bent, cylindric, 1-3 × 0.5 cm;

annulus rugulose;

limb yellow, 3-lobed, lobes triangular, 2 × 2 cm, glabrous;

gynostemium 3-lobed, globose, 3 mm;

anthers 6;

ovary 6-locular, 1-7 cm.

calyx yellow-brown marked with red-brown, strongly curved;

utricle pendent, globose to cylindric, 0.5-1.5 × 0.8-1 cm;

syrinx absent;

tube curved or bent and angled upward, cylindric, 1-3 × 0.3-0.5 cm;

annulus smooth;

limb yellow to brown, 3-lobed, lobes 1.5-2 × 1.5-2 cm, glabrous;

gynostemium 3-lobed, globose to crown-shaped, 4 mm;

anthers 6;

ovary 3-locular, 3-7 cm.

ellipsoid to cylindric, 6-8 × 4-6 cm, dehiscence basipetal;

valves 3;

septa entire, not attached to valves.

ovoid to cylindric, 6-8 × 4-10 cm, dehiscence basipetal;

valves 6;

septa entire, not attached to valves.

flat, triangular, 1 × 1 cm.

* flat, triangular, 1 × 1 cm.

= 28.

= 28.