Flora of North America species comparison

with axillary end buds, glabrous.

with terminal end buds, 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 5–10 mm, hairy, glandular distally or on margins at bases of blades;

blade elliptic, oblong-ovate, or ovate, 3–8 × 1.5–4 cm, base obtuse, margins doubly serrate, teeth sharp, glandular, apex acuminate, abaxial surface hairy along midribs and veins, adaxial glabrous or with appressed hairs along midrib.

1–3-flowered, umbellate fascicles.

2–5-flowered, umbellate fascicles.

2–12 mm, glabrous.

8–22 mm, 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 to tubular-urceolate, 4–7 mm, hairy externally;

sepals erect to spreading, oblong-ovate, 2–5 mm, margins toothed, sometimes glandular, abaxial surface sparsely hairy, adaxial glabrous;

petals pale pink, oblong to obovate, 8–12 mm;

ovaries glabrous.

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

mesocarps leathery to dry (splitting);

stones ovoid, ± flattened.

black, subglobose, 8 mm, glabrous;

mesocarps fleshy;

stones ellipsoid, not flattened.

= 24 (Japan).