Flora of North America species comparison

with axillary end buds, glabrous.

with terminal end buds, hairy.

deciduous;

petiole 5–20 mm, glabrous except for a few hairs on adaxial surface, eglandular;

blade ovate, elliptic, or obovate, 3–7 × 1.5–3.5 cm, base obtuse, margins singly to doubly crenate-serrate, teeth blunt, glandular, apex obtuse to acute, abaxial surface hairy along midribs and veins, adaxial 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.

usually solitary flowers, sometimes 2-flowered fascicles.

2–5-flowered, umbellate fascicles.

(4–)10–18 mm, glabrous.

8–22 mm, hairy.

blooming before leaf emergence;

hypanthium campanulate, 2–4 mm, glabrous externally;

sepals reflexed to spreading, oblong-ovate, 2–4 mm, margins glandular-toothed to nearly entire, eciliate, abaxial surface glabrous, adaxial hairy at bases;

petals white (reddish pink in cultivars), elliptic to suborbiculate, 7–14 mm;

ovaries glabrous.

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.

purple-red to yellow, sometimes glaucous, ovoid, ellipsoid, or globose, 15–30 mm, glabrous;

mesocarps fleshy;

stones ellipsoid to ovoid, ± to strongly flattened.

black, subglobose, 8 mm, glabrous;

mesocarps fleshy;

stones ellipsoid, not flattened.

= 16.

= 24 (Japan).