Flora of North America species comparison

with axillary end buds, usually hairy, sometimes glabrous.

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.

alternate, simple;

stipules deciduous, free;

venation pinnate.

solitary flowers or 2-flowered fascicles.

(2–)10–20 mm, glabrous or 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.

perianth and androecium perigynous;

epicalyx bractlets absent;

hypanthium cup-shaped, obconic, campanulate, or tubular;

torus absent;

carpel 1, distinct, free, style terminal, distinct;

ovules 2 (1 abortive), apical, collateral (obturator present).

drupes;

styles deciduous, not elongate.

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

mesocarps fleshy;

stones ovoid to ellipsoid, strongly flattened.

= 48.