Flora of North America species comparison

petiolate;

petiole 1–2.5(–4) cm;

blade simple, elliptic to obovate, 3–11(–14) × 1.6–5.5(–9) cm, margins entire or slightly undulate, occasionally with 2 small lobes at base, lobe margins entire, base truncate or acute.

petiolate;

petiole 2–6 cm;

blade simple to compound, broadly ovate, 5–10 × 2.5–8 cm, margins 2–3 times lobed or divided with 3–4 main leaflets per side, leaflets with acute lobes, base truncate.

terminal or lateral, leaf-opposed or extra-axillary, usually once-branched, occasionally more, 20–30-flowered, (2–)4–10 cm.

extra-axillary, unbranched, 5–9-flowered, 4–7 cm.

inserted into small sleeve on inflorescence axis, 1.5–2 cm in flower and fruit.

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

radially symmetric;

calyx not accrescent, unarmed, 6–7 mm, densely pubescent, lobes deltate;

corolla violet to purple with or without green spots at base of lobes, spots usually small and not confluent, rotate, 3–4.5 cm diam., with abundant interpetalar tissue;

stamens equal;

anthers ellipsoidal, 4.5–5 mm, dehiscent by terminal pores that open into longitudinal slits;

ovary glabrous.

bilaterally symmetric;

calyx accrescent and tightly covering fruit, densely prickly, 3–5 mm, densely pubescent, lobes linear;

corolla violet or blue, pentagonal-stellate, 1.4–2 cm diam., with interpetalar tissue at the margins and bases of lobes;

stamens unequal, lowermost much longer and curved;

anthers narrow and tapered, dehiscent by terminal pores, short anthers yellow, 4–5.5 mm, longer anther purplish, 5.5–8.5 mm;

ovary glabrous.

shiny green, turning yellow then black, globose, 3–4 cm diam., glabrous, without sclerotic granules.

brown, globose, 0.8–1 cm diam., glabrous, dry, without sclerotic granules.

reddish brown, plump to flattened, 1.5–2 × 1–1.5 mm, minutely pitted.

dark brown, flattened, 2.6–3 × 2–2.5 mm, minutely pitted.

= 24.