Flora of North America species comparison

petiolate;

petiole 0.5–3 cm;

blade simple, ovate, 3.5–7 × 2.2–5 cm, margins entire to coarsely toothed with 3–5 lobes per side, base truncate to cuneate.

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.

extra-axillary, unbranched or occasionally forked, racemelike, (3–)4–10-flowered, 1–2 cm.

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

0.5–1 cm, spreading to occasionally recurved in flower and fruit.

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

radially symmetric;

calyx not accrescent, unarmed, 1.5–2 mm, sparsely pubescent, lobes deltate, spreading to reflexed in fruit;

corolla white with yellowish central star, stellate, 1–1.5 cm diam., without interpetalar tissue;

stamens equal;

anthers ellipsoidal, (1.8–)2–2.5 mm, dehiscent by terminal pores that open into longitudinal slits;

ovary glabrous.

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.

dull or slightly shiny purple-black or green to yellowish green, globose, 0.5–1 cm diam., glabrous, without sclerotic granules.

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

yellow, flattened, 1.8–2 × 1.5–1.6 mm, minutely pitted.

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

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

= 72.

= 24.