Flora of North America species comparison

petiolate;

petiole 1–3.5 cm;

blade simple, ovate-lanceolate, 3–10 × 2–5 cm, margins entire to sinuate-dentate, base cuneate to truncate.

petiolate;

petiole 2–6 cm;

blade simple to 2–3 times lobed to compound, broadly ovate to elliptic, 4–9 × 2–7 cm, margins 2–3 times lobed to 2–3 times divided with 2–3 main leaflets per side, leaflets lobed to pinnately dissected, base truncate.

extra-axillary, forked, umbel-like or racemelike, 6–14-flowered, 1.5–3 cm.

extra-axillary, unbranched, 6–9-flowered, 4–9 cm.

straight and spreading and 0.5–1 cm in flower, strongly reflexed and 0.5–1 cm in fruit.

1–2 cm in flower, erect and 2–3 cm in fruit.

radially symmetric;

calyx not accrescent, unarmed, 3–4 mm, sparsely pubescent, lobes obtuse;

corolla white to pale purple with yellowish or greenish central star, stellate, 1–2 cm diam., with sparse interpetalar tissue;

stamens equal;

anthers ellipsoidal, 2.5–3.5 mm, dehiscent by terminal pores that open into longitudinal slits;

ovary glabrous.

bilaterally symmetric;

calyx accrescent and almost completely and tightly covering fruit, moderately to densely prickly, 4–6 mm, sparsely to moderately pubescent, lobes linear to lanceolate;

corolla violet or blue, stellate, 2.5–3.5 cm diam., with sparse interpetalar tissue;

stamens unequal, lowermost much longer and curved;

anthers narrow and tapered, dehiscent by terminal pores, short anthers 7–10 mm, longer anther 12–20 mm;

ovary glabrous.

dull green to purple, globose, 0.5–0.9 cm diam., glabrous, with 6–14 sclerotic granules per fruit.

brown, globose to depressed-globose, 0.7–1 cm diam., glabrous, dry, without sclerotic granules.

pale yellow to light brown, flattened, 1.5–2 × 1–1.5 mm, finely reticulate.

dark brown, plump, 2.8–3.6 × 2–3 mm, minutely pitted and irregularly ridged.

= 72.

= 24.