Flora of North America species comparison

twining.

usually twining, sometimes trailing.

blades usually (3–)5–7-lobed, middle lobe narrowly ± rhombic, sometimes proximal blades cordate to ovate, not lobed, 15–100 × 10–70 mm, base cordate to ± truncate, basal lobes rounded to pointed, margins ± dentate, surfaces glabrous or abaxial pilose.

blades deltate, ovate, or ovate-elongate, 24–80 × 8–87 mm, base cordate or ± sagittate to truncate, margins sometimes 3-toothed, surfaces glabrous.

glabrous.

pilosulous on proximal 1–2 mm, distally glabrous.

diurnal, sepals chartaceous to membranous, outers oblong, 3–3.5 mm, apex obtuse, rounded, or ± truncate, each with ± terminal corniform appendage 3–5 mm, glabrous, inners oblong, 4–5.7 mm, apex obtuse to truncate, each with ± terminal corniform appendage 2.5–3.5 mm;

corolla red or red-orange, salverform, 18–26 mm, limb 10–15 mm diam. 2n = 30.

sepals elongate-ovate to ovate, 3.5–8 mm, chartaceous or coriaceous, apex acute to obtuse, abaxial surface dotted with dark spots;

corolla usually dark lavender to pink, rarely white, funnelform, 15–28 mm.