Flora of North America species comparison

deciduous;

petiole 0.5–4 mm;

blade narrowly elliptic, 2.5–6 × 0.5–2.5 cm, base attenuate or cuneate, margins denticulate, apex acuminate.

deciduous;

petiole 1–3 mm;

blade oval to lanceolate, 3–10 × 0.8–3 cm, base cuneate, obtuse, to rounded, margins crenate-serrate, apex acute or acuminate.

axillary, (1–)3(–7)-flowered.

terminal or axillary, 1–3-flowered.

sepals 4;

petals 4, yellowish green or white, oblong, 2–3 × 1.5–2 mm;

stamens 4;

ovary smooth.

sepals 5;

petals 5, pale green, often suffused with purple, round, 2–3 mm diam.;

stamens 5;

ovary spiny.

purple-brown, obovoid, 8–10 × 5–15 mm, deeply 2–4-lobed to base or only 1 lobe developing, lobes nearly distinct, surface smooth.

red or pink to purple, subglobose, 11–13 mm diam., unlobed or very shallowly 4–5-lobed, lobes clearly connate, surface spiny.

ellipsoid, 7–8 × 4–5 mm;

aril yellow or orange.

subglobose, 4.5–5.5 mm;

aril red.

= 64.

= 64.