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 2–10 cm;

blade simple to twice-compound, ovate to elliptic, (2–)4–16 × 3–12 cm, margins lobed to 1–2 times divided with 2–4 main leaflets per side, leaflets with deep, rounded lobes, base truncate to subcordate.

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

extra-axillary, unbranched, 5–12-flowered, 4–11 cm.

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

0.5–1.5 cm in flower, erect and 0.5–1.5 cm 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 or bristly, 7.5–12.5 mm, densely stellate-pubescent, lobes linear to lanceolate;

corolla yellow, rotate-pentagonal, 1.5–3.5 cm diam., with abundant interpetalar tissue;

stamens unequal, lowermost much longer and curved;

anthers narrow and tapered, dehiscent by terminal pores, short anthers 4, yellow, 6–8 mm, longer anther reddish or purplish, 10–14 mm;

ovary glabrous.

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

brown, globose, 1–1.2 cm diam., glabrous, dry, without sclerotic granules.

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

dark brown, flattened, 2–3 × 1.8–2 mm, minutely pitted and irregularly ridged.

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

= 24.

= 24.