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 0.5–3 cm;

blade simple, ovate to lanceolate, 2–10 × 1–5 cm, margins entire to sinuate-dentate, base cuneate to decurrent.

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

usually extra-axillary, occasionally leaf-opposed, unbranched, 4–8(–10)-flowered, 1–2 cm.

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

spreading to reflexed and 0.4–1 cm in flower and 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 accrescent and covering ca. one-half berry, unarmed, 3–4 mm, sparsely to moderately pubescent, lobes broadly triangular;

corolla white with yellowish central star edged with reddish purple to dark brown, rotate-stellate, 0.5–1 cm diam., with sparse interpetalar tissue;

stamens equal;

anthers ellipsoidal, 1–1.4 mm, dehiscent by terminal pores that open into longitudinal slits;

ovary glabrous.

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

shiny greenish to purplish brown, globose, 0.5–1 cm diam., glabrous, with (0–)2–3 sclerotic granules.

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

yellow to brown, flattened, 1.5–2.5 × 1.5–2 mm, minutely pitted.

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

= 24.

= 24.