Flora of North America species comparison

with axillary end buds, glabrous.

with terminal end buds, sparsely hairy.

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 10–20 mm, hairy, sometimes glandular distally, glands 1–2;

blade elliptic-ovate to obovate, 5–12 × 2.5–7 cm, base rounded, margins doubly serrate, teeth aristate, glandular, apex acuminate, abaxial surface hairy along midribs and veins, adaxial glabrous.

1–3-flowered, umbellate fascicles.

2–6-flowered, corymbs;

central axes 4–8(–20) mm.

2–12 mm, glabrous.

15–25 mm (subtended by leafy bracts), hairy.

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.

blooming before leaf emergence;

hypanthium tubular, 7–8 mm, hairy externally;

sepals spreading, ovate-lanceolate, 4–5 mm, margins glandular-toothed, abaxial surface hairy, adaxial sparsely hairy;

petals white or pink, broadly elliptic to obovate, 13–15 mm;

ovaries glabrous.

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

mesocarps leathery to dry (splitting);

stones ovoid, ± flattened.

black, subglobose, 7–12 mm, glabrous;

mesocarps fleshy;

stones ellipsoid, not flattened.

= 16 (Japan).