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 1–10 cm;

blade simple, elliptic to ovate, 10–25 × 3–15 cm, margins entire, base rounded or acute.

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

terminal, becoming leaf-opposed, much-branched, 10–50-flowered, 5–20 cm.

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

0.2–0.6 cm in flower, erect and 0.4–10 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 accrescent and subtending fruit, unarmed, 5–7 mm, densely pubescent, hairs stellate to echinoid, lobes broadly triangular;

corolla white, stellate, 1–2 cm diam., without interpetalar tissue;

stamens equal;

anthers oblong, 2.5–3.5 mm, dehiscent by terminal pores that open into longitudinal slits;

ovary tomentose, hairs stellate or echinoid.

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

yellow to orange, globose, 1–2 cm diam., densely pubescent, without sclerotic granules.

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

yellowish brown, flattened, 1.5–2 × 1–1.5 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.