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 0.5–2 cm;

blade simple, elliptic to elliptic-ovoid, 1–4.5 × 0.5–2.5 cm, margins entire, base rounded to obtuse and often decurrent.

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

nearly sessile, extra-axillary or subopposite leaves, unbranched, racemelike, 1–5-flowered.

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

0.5–1.2 cm in flower, 1–2 mm and spreading or nodding 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, 3–9 mm, moderately to densely pubescent, lobes linear-lanceolate;

corolla white, rotate, 0.5–1 cm diam., with abundant interpetalar tissue;

stamens equal;

anthers oblong, slightly tapered, 1.5–3 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.

white to greenish and semitransparent, globose, 5–12 mm diam., glabrous, without sclerotic granules.

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

light brown, somewhat flattened, ca. 2.5 × 1.5 mm, notched where connected to placenta, ridged.

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

= 24.