Flora of North America species comparison

with terminal end buds, glabrous.

with axillary end buds, canescent.

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.

deciduous;

petiole 0.5–3(–5) mm, hairy, eglandular;

blade ovate, obovate, or spatulate, 0.5–2(–3) × 0.2–1(–2) cm, base cuneate to obtuse, margins irregularly serrate, teeth usually sharp, eglandular, sometimes blunt, obscurely glandular, apex obtuse to rounded, often mucronate, surfaces hairy.

12–30-flowered, racemes;

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

solitary flowers or 2-flowered fascicles.

1–4 mm, glabrous.

0–3 mm, puberulent.

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.

unisexual, plants dioecious, blooming at leaf emergence;

hypanthium campanulate, 2–4 mm, hairy externally;

sepals erect, triangular, 1–2 mm, margins entire, sparsely ciliate, abaxial surface densely hairy, adaxial glabrous or slightly hairy;

petals white, elliptic, rhombic, ovate, or suborbiculate, 2.5–6 mm, abaxial surfaces hairy;

ovaries hairy.

black, ovoid, 9–12 mm, glabrous;

mesocarps leathery;

stones ovoid, not flattened, usually splitting open.

yellowish orange, obovoid to ovoid, 9–16 mm, velutinous;

mesocarps leathery to dry;

stones subglobose to ovoid, slightly flattened.

= 32.