Flora of North America species comparison

with axillary end buds, usually hairy, sometimes glabrous.

with terminal end buds, hairy.

deciduous;

petiole 6–20 mm, glabrous or hairy on adaxial surface or both surfaces, eglandular or glandular distally or on margins at bases of blades, glands 1–3;

blade elliptic to obovate, (2.5–)4–7(–9) × 1.5–5 cm, base cuneate to obtuse, margins singly to doubly crenate-serrate, teeth blunt, glandular, apex usually acute to abruptly acuminate, sometimes obtuse, abaxial surface hairy (especially along veins), adaxial glabrous or midribs hairy.

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.

solitary flowers or 2-flowered fascicles.

2–5-flowered, umbellate fascicles.

(2–)10–20 mm, glabrous or hairy.

8–22 mm, hairy.

blooming before or at leaf emergence;

hypanthium cupulate, 3–5 mm, glabrous externally;

sepals spreading to reflexed, ovate-elliptic to lanceolate, 3.5–6 mm, margins glandular-toothed, ciliate, surfaces glabrous or hairy;

petals white, oblong 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.

blue-black (green, yellow, or red in cultivars), ellipsoid to globose, 15–35 mm, glabrous;

mesocarps fleshy;

stones ovoid to ellipsoid, strongly flattened.

black, subglobose, 8 mm, glabrous;

mesocarps fleshy;

stones ellipsoid, not flattened.

= 48.

= 24 (Japan).