Flora of North America species comparison

with axillary end buds, usually hairy, sometimes glabrous.

with terminal end buds, 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.

persistent;

petiole 14–20 mm, glabrous, eglandular;

blade elliptic, oblong-ovate, or ovate-lanceolate, 6–13 × 2.5–7 cm, base obtuse to rounded, margins crenate-dentate, teeth blunt, glandular, apex acuminate, surfaces glabrous, abaxial eglandular, if glands present, restricted to margins.

solitary flowers or 2-flowered fascicles.

18–60[–100]-flowered, racemes;

central axes 100–280 mm, leafless at bases.

(2–)10–20 mm, glabrous or hairy.

7–15(–22) mm, 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.

blooming after leaf emergence;

hypanthium cupulate, 2.5–3.5 mm, glabrous externally;

sepals spreading to reflexed, semicircular, 1–1.5 mm, margins entire, ± ciliate, abaxial surface glabrous, adaxial hairy;

petals white, suborbiculate to obovate, 4–7 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.

dark purple, ovoid to conic-ovoid, 8–12 mm, glabrous;

mesocarps fleshy to leathery;

stones ovoid, not flattened.

= 48.

= 32, 64.