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 1.5–4 cm;

blade simple, ovate to elliptic, 5–25 × 3–15 cm, margins entire to shallowly lobed with 2–4 lobes per side, lobe margins entire to undulate, base obtuse to cordate.

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

extra-axillary, usually much-branched, 10–20-flowered, to 10 cm.

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

0.5–1 cm in flower, erect and 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 not accrescent, unarmed, 5–8 mm, densely stellate-pubescent, lobes triangular;

corolla usually blue to purple, rarely whitish, stellate to rotate-stellate, 2.5–4 cm diam., with abundant interpetalar tissue;

stamens equal;

anthers narrow and tapered, 6–8 mm, dehiscent by terminal pores;

ovary glabrous to stellate-pubescent.

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

yellow to orange, globose, 0.7–1.5 cm diam., stellate-pubescent at apex, without sclerotic granules.

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

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

= 24, 48, 72.