Flora of North America species comparison

petiolate;

petiole 1–8 cm;

blade simple, elliptic to ovate, 11–31 × 4–14 cm, margins entire, base acute, often with smaller axillary leaves.

petiolate;

petiole 2–10(–13) cm;

blade simple, broadly ovate, 4–15 × 4–15 cm, margins shallowly to deeply lobed with 2–3 lobes per side, lobe margins entire to coarsely lobed, base cordate.

terminal, becoming leaf-opposed, much-branched, 50–100-flowered, 5–24 cm.

extra-axillary, ± sessile, unbranched, 1–7-flowered.

erect and 0.2–0.5 cm in flower and fruit.

ca. 1 cm in flower, 1.5–2 cm in fruit.

radially symmetric;

calyx slightly accrescent, unarmed, 4–7.5 mm, densely pubescent, lobes deltate;

corolla purple, stellate-pentagonal, 1–1.5 cm diam., with abundant interpetalar tissue;

stamens equal;

anthers oblong, 2–3.5 mm, dehiscent by terminal pores that open into longitudinal slits;

ovary tomentose.

radially symmetric;

calyx somewhat accrescent, sometimes prickly, 4–6 mm, pubescent with minute glands and longer, simple, eglandular hairs, lobes triangular;

corolla white, stellate, 1.5–2 cm diam., without interpetalar tissue;

stamens equal;

anthers narrow and tapered, 5–6.5 mm, dehiscent by terminal pores;

ovary glabrous.

yellow, globose, 1–1.5 cm diam., tomentose, without sclerotic granules.

dull orange to red, globose, 2–4 cm diam., glabrous, without sclerotic granules.

yellowish brown, flattened, 1.5–2.5 × 1.5–2 mm, minutely pitted.

yellow, flattened, winged at maturity, 4–6 × 4–6 mm, minutely pitted.

= 24.

= 24.