Flora of North America species comparison

petiolate;

petiole 0.5–3(–7) cm;

blade simple, ovate, 1–5(–9) × 0.5–3(–6) cm, margins entire to coarsely and irregularly toothed, base truncate to acute and decurrent.

petiolate;

petiole 2–7 cm;

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

extra-axillary or leaf-opposed, unbranched, racemelike, 2–7(–14)-flowered, 2–4 cm.

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

0.5–1 cm in flower and fruit, nodding or deflexed downward in fruit.

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

radially symmetric;

calyx not accrescent, unarmed, 2–3 mm, sparsely pubescent, lobes deltate;

corolla white with yellow-green to brownish central star, stellate, 1–2 cm diam., without interpetalar tissue;

stamens equal;

anthers ellipsoidal and slightly tapered towards the tips, (2.5–)3–4.5 mm, dehiscent by terminal pores that open into longitudinal slits;

ovary glabrous.

bilaterally symmetric;

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

corolla violet or blue, pentagonal-stellate, with narrowly deltate lobes, 1–1.5 cm diam., with sparse 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.

dull purplish black, globose, 0.5–1 cm diam., glabrous, with (2–)6–8 sclerotic granules per fruit.

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

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

dark brown, flattened, 2.5–3 × 2–2.5 mm, reticulately wrinkled or merely undulate.

= 24.