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 1–5 cm;

blade simple, ovate to elliptic, 7–23 × 4–14 cm, margins subentire to coarsely lobed with 3–4 lobes per side, lobe margins entire to coarsely lobed, base truncate to subcordate and asymmetrical.

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

extra-axillary, unbranched or branched, 10–20-flowered, to 6 cm.

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

1–1.5 cm in flower, erect and 1.5–2.5 cm 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.

radially symmetric;

calyx slightly accrescent, unarmed, 4–8 mm, sparsely to moderately pubescent with unbranched, gland-tipped hairs, lobes lanceolate;

corolla white, stellate, 2–3 cm diam., with sparse interpetalar tissue;

stamens equal;

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

ovary glabrous or glandular-puberulent at apex.

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

green to yellow, globose, 1–1.5 cm diam., glabrous, without sclerotic granules.

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

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

= 24.