Flora of North America species comparison

glabrous.

glabrous.

twining-climbing.

initially erect, usually becoming procumbent or weakly twining-climbing, to 80 cm.

blade ± cordate, to 50–120 mm, base rounded or lobed, lobes rounded or 1-pointed, basal sinus ± quadrate to rounded.

blade triangular to triangular-hastate, 20–80 × 20–70 mm, base lobed, lobes 2(–3)-pointed, basal sinus quadrate, rounded, or broadly V-shaped, apex ± acute.

immediately subtending sepals, lanceolate, to 30 × 15–35 mm, proximally saccate, margins strongly enfolding sepals, apex obtuse to truncate.

immediately subtending sepals, lance-ovate to ovate, 7–14(–18) × (4–)6–10(–12) mm, proximally flat, apex acute to subobtuse.

sepals oval to ovate, 15–23 mm;

corolla white, sometimes pinkish-striped, rarely otherwise pink-tinged, 43–70[–88] mm;

stamens 23–40 mm;

anthers 4–6.5 mm.

sepals 5–8(–12) mm;

corolla usually pale pink, sometimes purple or white, 21–32(–35) mm.

= 22.