Flora of North America species comparison

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.

petiolate;

petiole 0.2–0.5 cm;

blade simple, elliptic, 0.9–6.8 × 0.6–2.2 cm, margins entire, base acute to attenuate or decurrent.

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

leaf-opposed, unbranched, 5–20-flowered, 0.3–1.2 cm.

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

ca. 0.5 cm in flower, ca. 1.2 cm and erect in fruit.

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.

radially symmetric;

calyx somewhat accrescent, unarmed, 1.5–2 mm, glabrous, lobes deltoid;

corolla white, often tinged with lavender, stellate, 0.7–1 cm diam., without interpetalar tissue;

stamens equal;

anthers oblong, 1.5–2 mm, dehiscent by terminal pores that open into longitudinal slits;

ovary glabrous.

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

yellow to orange, globose, 0.7–1.2 cm diam., glabrous, without sclerotic granules.

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

pale yellow or tan, flattened, ca. 3 × 2.5 mm, minutely pitted.

= 24.

= 24.