Flora of North America species comparison

petiolate;

petiole 1–5 cm;

blade simple, lanceolate to oblong, 5–15 × 0.5–3 cm, margins undulate, subentire to sinuate or shallowly lobed, lobe margins entire, base truncate to cuneate.

petiolate;

petiole 1–5 cm;

blade simple, ovate, 4–13 × 3–12 cm, margins deeply lobed with 2–4 lobes per side, these with additional coarse, acute teeth or shallow lobes, base cordate.

extra-axillary, unbranched, 3–5(–7)-flowered, 3–5 cm.

extra-axillary, unbranched, 1–3(–6)-flowered, 0.5–2(–5) cm.

1–3 cm in flower, reflexed and 1–3 cm in fruit.

0.5–1 cm in flower, 1–2 cm in fruit.

radially symmetric;

calyx not accrescent, unarmed or with sparse prickles, 5–10 mm, densely silvery-stellate-pubescent, lobes linear-lanceolate;

corolla pale to deep blue or violet, rarely white, pentagonal-stellate, 2–3(–3.5) cm diam., with abundant interpetalar tissue;

stamens equal;

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

ovary glabrous to densely stellate-pubescent.

radially symmetric;

calyx somewhat accrescent and partially covering fruit, densely prickly, 4–6 mm, densely stellate-pubescent, lobes narrowly triangular;

corolla white, bluish white, blue, or lilac, rotate-campanulate, 1–1.5 cm diam., with abundant interpetalar tissue;

stamens equal;

anthers narrow and tapered, 2–5 mm, dehiscent by terminal pores;

ovary glabrous.

yellow to orange, drying brown or black, globose, 0.5–1.5 cm diam., glabrous, without sclerotic granules.

purplish, greenish, or yellowish, globose, 1.5–2 cm diam., glabrous, without sclerotic granules.

yellowish, flattened, 3–5 × 2–4 mm, minutely pitted.

yellowish brown, flattened, 1.8–3 × 1.4–2 mm, pustulate.

= 24, 48, 72.