Flora of North America species comparison

with axillary end buds, glabrous.

with axillary end buds, usually hairy, sometimes glabrous.

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 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.

usually solitary flowers, sometimes 2-flowered fascicles.

solitary flowers or 2-flowered fascicles.

(4–)10–18 mm, glabrous.

(2–)10–20 mm, glabrous or 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 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.

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

mesocarps fleshy;

stones ellipsoid to ovoid, ± to strongly flattened.

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

mesocarps fleshy;

stones ovoid to ellipsoid, strongly flattened.

= 16.

= 48.