Flora of North America species comparison

petiolate;

petiole 1–4 cm;

blade simple, ovate to ovate-elliptic, 2–10.5 × 1–4.5 cm, margins entire or shallowly sinuate-dentate, base decurrent.

petiolate;

petiole 2–10 cm;

blade compound, elliptic, 10–30+ × 5–25 cm, margins divided with 3(–5) pairs of leaflets, interspersed with smaller interjected leaflets, leaflet margins toothed, base truncate to cordate.

extra-axillary or leaf-opposed, unbranched, usually umbel-like, 3–10-flowered, 0.5–3 cm.

lateral, extra-axillary, simple or rarely forked, 4–15-flowered, to 10 cm.

erect or spreading, 0.3–1 cm in flower, to 1.5 cm in fruit.

articulated near middle, 0.5–2 cm in flower, to 3 cm in fruit.

radially symmetric;

calyx somewhat accrescent, unarmed, 1–3 mm, lobes deltate, strongly reflexed in fruit;

corolla white, sometimes with yellowish central star, stellate, 0.4–0.8 cm diam., without interpetalar tissue;

stamens equal;

anthers ellipsoidal, 0.7–1.5 mm, dehiscent by terminal pores that open into longitudinal slits;

ovary glabrous.

radially symmetric;

calyx accrescent, unarmed, 5–25 mm, lobes 5–7, lanceolate-acuminate;

corolla yellow, pentagonal to stellate, 1–3 cm diam., with interpetalar tissue at margins and bases of lobes;

stamens equal;

anthers narrow and tapered, 6–11 mm, each with a sterile apical appendage, dehiscent by oblong pores that open into introrse, longitudinal slits;

ovary glabrous or glandular-puberulent.

shiny purplish black, globose, 0.5–1 cm diam., glabrous, with (0–)2–4(–6) sclerotic granules, usually 2–4 larger and 2 smaller.

usually red, orange, or yellow, globose to ellipsoid or obovoid, 1.5–12 cm diam., glabrous, without sclerotic granules.

pale yellow to brown, 1–1.5 × 0.5–1.5 mm, minutely pitted.

pale brown, flattened, 2–4 × 1.5–2 mm, pubescent.

= 24.

= 24.