Flora of North America species comparison

petiolate;

petiole 1–5 cm;

blade simple, ovate to elliptic, 7–23 × 4–14 cm, margins subentire to coarsely lobed with 3–4 lobes per side, lobe margins entire to coarsely lobed, base truncate to subcordate and asymmetrical.

petiolate;

petiole 2–7 cm;

blade simple to compound, broadly ovate to deltate, 4–11 × 4–8 cm, margins twice-lobed to twice-divided with 2–3 main leaflets per side, leaflets with obtuse or rounded lobes, base truncate.

extra-axillary, unbranched or branched, 10–20-flowered, to 6 cm.

extra-axillary, unbranched, 5–9-flowered, 4–10 cm.

1–1.5 cm in flower, erect and 1.5–2.5 cm in fruit.

1–2 cm in flower, erect and 1–2 cm in fruit.

radially symmetric;

calyx slightly accrescent, unarmed, 4–8 mm, sparsely to moderately pubescent with unbranched, gland-tipped hairs, lobes lanceolate;

corolla white, stellate, 2–3 cm diam., with sparse interpetalar tissue;

stamens equal;

anthers narrow and tapered, 6–9 mm, dehiscent by terminal pores;

ovary glabrous or glandular-puberulent at apex.

bilaterally symmetric;

calyx accrescent and tightly covering fruit, densely prickly, 4.5–6.5 mm, sparsely glandular-pubescent, lobes lanceolate;

corolla violet or blue, pentagonal, 1–1.5 cm diam., with abundant interpetalar tissue;

stamens unequal, lowermost much longer and curved;

anthers narrow and tapered, dehiscent by terminal pores, short anthers 2–4 mm, longer anther 3.5–5 mm;

ovary glabrous.

green to yellow, globose, 1–1.5 cm diam., glabrous, without sclerotic granules.

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

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

dark brown, flattened, 2.5–3 × 2–2.5 mm, minutely pitted and weakly ridged or faceted.

= 24.