Flora of North America species comparison

with axillary end buds, glabrous.

with axillary end buds, canescent.

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.

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.

1–3-flowered, umbellate fascicles.

solitary flowers or 2-flowered fascicles.

2–12 mm, glabrous.

0–3 mm, puberulent.

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.

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.

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

mesocarps leathery to dry (splitting);

stones ovoid, ± flattened.

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

mesocarps leathery to dry;

stones subglobose to ovoid, slightly flattened.