Flora of North America species comparison

petiolate;

petioles twining around supports, 1–4 cm;

blade simple to compound, elliptic to broadly ovate, (2–)3.5–10(–13) × (1–)2–9(–11) cm, margins entire to divided with up to 4 pairs of leaflets, leaflet margins entire, base truncate or slightly cordate.

petiolate;

petiole 1–5 cm;

blade simple, ovate, 4–13 × 3–12 cm, margins deeply lobed with 2–4 lobes per side, these with additional coarse, acute teeth or shallow lobes, base cordate.

terminal, becoming lateral, extra-axillary, much-branched, to 100+-flowered, to 25+ cm.

extra-axillary, unbranched, 1–3(–6)-flowered, 0.5–2(–5) cm.

inserted into small sleeve on inflorescence axis, 0.8–1.4 cm in flower and fruit.

0.5–1 cm in flower, 1–2 cm in fruit.

radially symmetric;

calyx not accrescent, unarmed, ca. 0.5 mm, nearly truncate, glabrous or sparsely pubescent on lobe tips;

corolla purple, stellate, 1–2.5 cm diam., with sparse interpetalar tissue;

stamens unequal due to unequal filaments;

anthers ellipsoidal, 2–3 mm, dehiscent by terminal pores;

ovary glabrous.

radially symmetric;

calyx somewhat accrescent and partially covering fruit, densely prickly, 4–6 mm, densely stellate-pubescent, lobes narrowly triangular;

corolla white, bluish white, blue, or lilac, rotate-campanulate, 1–1.5 cm diam., with abundant interpetalar tissue;

stamens equal;

anthers narrow and tapered, 2–5 mm, dehiscent by terminal pores;

ovary glabrous.

bright shiny red, globose, 0.8–1.5 cm diam., glabrous, without sclerotic granules.

purplish, greenish, or yellowish, globose, 1.5–2 cm diam., glabrous, without sclerotic granules.

pale yellowish tan, flattened, 4–4.5 × 2.5-3 mm, minutely pitted.

yellowish brown, flattened, 1.8–3 × 1.4–2 mm, pustulate.

or scrambling vines, woody, unarmed, to ca. 3 m, glabrous or sparsely pubescent, hairs white, unbranched, ca. 0.2 mm.

= 24.