Flora of North America species comparison

petiolate;

petiole 0.5–5 cm;

blade simple, elliptic or ovate to cordate, 2.5–12 × 1.2–9 cm, margins entire to deeply pinnatifid and usually 3-lobed near base, lobe margins entire, base truncate to cordate.

petiolate;

petiole 2–6 cm;

blade simple to compound, broadly ovate, 5–10 × 2.5–8 cm, margins 2–3 times lobed or divided with 3–4 main leaflets per side, leaflets with acute lobes, base truncate.

terminal or lateral, extra-axillary, much-branched, 7–40-flowered, (1–)4–15 cm.

extra-axillary, unbranched, 5–9-flowered, 4–7 cm.

inserted into a small sleeve on the inflorescence axis, 0.6–1.2 cm in flower and fruit.

1–1.5 cm in flower, 1–1.5 cm and erect in fruit.

radially symmetric;

calyx not accrescent, unarmed, 1–2 mm, glabrous to densely pubescent, lobes triangular, shallow;

corolla purple (rarely white), with green and white shiny spots at base of each lobe, deeply stellate, 1.5–2 cm diam., without interpetalar tissue;

stamens equal;

anthers oblong, slightly tapered, 4.5–6 mm, dehiscent by terminal pores that often open into longitudinal slits;

ovary glabrous.

bilaterally symmetric;

calyx accrescent and tightly covering fruit, densely prickly, 3–5 mm, densely pubescent, lobes linear;

corolla violet or blue, pentagonal-stellate, 1.4–2 cm diam., with interpetalar tissue at the margins and bases of lobes;

stamens unequal, lowermost much longer and curved;

anthers narrow and tapered, dehiscent by terminal pores, short anthers yellow, 4–5.5 mm, longer anther purplish, 5.5–8.5 mm;

ovary glabrous.

bright shiny red, globose to ellipsoidal, 0.5–1.5 × 0.5–1 cm, glabrous, without sclerotic granules.

brown, globose, 0.8–1 cm diam., glabrous, dry, without sclerotic granules.

pale yellow or tan, flattened, 2–3 mm diam., minutely pitted.

dark brown, flattened, 2.6–3 × 2–2.5 mm, minutely pitted.

, climbing or scrambling, herbaceous or woody, unarmed, to 8–10 m, sparsely to densely pubescent, hairs unbranched and/or dendritic, rarely glabrous.

= 24.

= 24.