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 1–4 cm;

blade simple, ovate, 6–15 × 3–10 cm, margins sinuate or shallowly to deeply lobed with 2–4 lobes per side, lobe margins entire to coarsely lobed, base truncate to cuneate and often oblique.

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

extra-axillary, 1–several times branched, to ca. 20-flowered, 6–14 cm.

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

1–2.5 cm in flower, 1.5–3 cm and curved 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 or with sparse prickles, 6–14 mm, densely stellate-pubescent, lobes ovate-lanceolate;

corolla lavender, pale blue, or sometimes white, stellate to stellate-pentagonal or rotate-stellate, 2–4.6 cm diam., with abundant interpetalar tissue at margins and bases of lobes;

stamens equal;

anthers narrow and tapered, 5–9 mm, dehiscent by terminal pores;

ovary minutely pubescent, hairs simple and stellate, rarely densely stellate-pubescent, glandular and eglandular.

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

yellow, subovoid to depressed-globose, 1–2 × 1–2.5 cm, glabrous, without sclerotic granules.

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

yellow, flattened, 1.9–3 × 1.7–2.5 mm, minutely pitted.

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

= 24.

= 72.