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(–7) cm;

blade simple, ovate, 1–5(–9) × 0.5–3(–6) cm, margins entire to coarsely and irregularly toothed, base truncate to acute and decurrent.

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

extra-axillary or leaf-opposed, unbranched, racemelike, 2–7(–14)-flowered, 2–4 cm.

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

0.5–1 cm in flower and fruit, nodding or deflexed downward 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 not accrescent, unarmed, 2–3 mm, sparsely pubescent, lobes deltate;

corolla white with yellow-green to brownish central star, stellate, 1–2 cm diam., without interpetalar tissue;

stamens equal;

anthers ellipsoidal and slightly tapered towards the tips, (2.5–)3–4.5 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.

dull purplish black, globose, 0.5–1 cm diam., glabrous, with (2–)6–8 sclerotic granules per fruit.

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

pale yellow to tan, flattened, 1.5–2 × 1–1.5 mm, finely reticulate.

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

= 24.

= 24.