Flora of North America species comparison

with axillary end buds, glabrous.

with terminal end buds, glabrous.

deciduous;

petiole 1–7 mm, glabrous, eglandular;

blade elliptic, ovate, or suborbiculate, 0.6–3 × 0.5–2 cm, base obtuse to rounded, subcordate, or truncate, margins obscurely crenulate, crenulate-serrulate, or serrate, teeth blunt, glandular, apex usually obtuse to rounded, sometimes emarginate, surfaces glabrous.

persistent;

petiole 5–8 mm, glabrous, eglandular;

blade narrowly elliptic to elliptic or oblanceolate, 5–10 × 1.5–4 cm, base cuneate to obtuse, margins entire or spinose-serrate, sometimes undulate, teeth sharp, eglandular, apex usually acute to short-acuminate, sometimes obtuse-apiculate, apicula acute, surfaces glabrous, abaxial glandular, glands 2, proximal, flat, circular to oval.

1–3-flowered, umbellate fascicles.

12–30-flowered, racemes;

central axes 13–30(–43) mm, leafless at bases.

2–12 mm, glabrous.

1–4 mm, glabrous.

blooming at leaf emergence;

hypanthium campanulate, 2–4 mm, glabrous externally;

sepals erect-spreading, semicircular to ovate, 1.2–4 mm, margins glandular-toothed, ciliate, abaxial surface glabrous, adaxial hairy;

petals usually white, sometimes pinkish rose, elliptic, obovate, or suborbiculate, 3–10 mm;

ovaries hairy.

usually bisexual, proximal sometimes staminate, blooming before leaf emergence;

hypanthium cupulate, 2.5–3 mm, glabrous externally;

sepals spreading, semicircular, 0.5–1 mm, margins usually entire, sometimes glandular-toothed, surfaces glabrous;

petals white, suborbiculate to elliptic, 1–1.5 mm;

ovaries glabrous.

yellowish, ellipsoid-ovoid, 8–15 mm, densely puberulent;

mesocarps leathery to dry (splitting);

stones ovoid, ± flattened.

black, ovoid, 9–12 mm, glabrous;

mesocarps leathery;

stones ovoid, not flattened, usually splitting open.

= 32.