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 2–10 cm;

blade compound, elliptic, 10–30+ × 5–25 cm, margins divided with 3(–5) pairs of leaflets, interspersed with smaller interjected leaflets, leaflet margins toothed, base truncate to cordate.

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

lateral, extra-axillary, simple or rarely forked, 4–15-flowered, to 10 cm.

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

articulated near middle, 0.5–2 cm in flower, to 3 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, unarmed, 5–25 mm, lobes 5–7, lanceolate-acuminate;

corolla yellow, pentagonal to stellate, 1–3 cm diam., with interpetalar tissue at margins and bases of lobes;

stamens equal;

anthers narrow and tapered, 6–11 mm, each with a sterile apical appendage, dehiscent by oblong pores that open into introrse, longitudinal slits;

ovary glabrous or glandular-puberulent.

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

usually red, orange, or yellow, globose to ellipsoid or obovoid, 1.5–12 cm diam., glabrous, without sclerotic granules.

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

pale brown, flattened, 2–4 × 1.5–2 mm, pubescent.

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

= 24.

= 24.