Flora of North America species comparison

with terminal end buds, glabrous or hairy.

with terminal end buds, densely puberulent.

deciduous;

petiole 4–22(–27) mm, usually glabrous, sometimes hairy, glandular distally, glands 2, discoid;

blade obovate or elliptic to ovate or oblanceolate, 2.5–9(–11) × 1.2–5(–6.6), base cuneate to rounded or subcordate, margins serrulate to serrate, teeth ascending to spreading, usually sharp, eglandular, sometimes callus-tipped, obscurely glandular, lateral veins 6–13 per side, raised abaxially, apex acuminate, acute, or obtuse, abaxial surface glabrous or hairy (especially along midribs), adaxial glabrous.

deciduous;

petiole 4–20 mm, glabrous or ± puberulent on adaxial surface, sometimes glandular distally, glands 1–2, discoid;

blade broadly ovate, oblong, or suborbiculate, 1.9–4.5 × 1.2–3.4 cm, base usually rounded to truncate, sometimes subcordate, margins crenate, teeth blunt, glandular, apex abruptly acuminate, apicula obtuse, surfaces usually glabrous, sometimes midribs and veins hairy abaxially.

18–64-flowered, racemes;

central axes (18–)40–110(–130) mm, leafy at bases.

4–10-flowered, corymbs;

central axes 8–40 mm.

2–8(–16) mm, usually glabrous, rarely hairy.

6–18 mm (subtended by leafy bracts), glabrous.

blooming after leaf emergence;

hypanthium cupulate, 1.5–3 mm, glabrous externally;

sepals erect-spreading to reflexed, semicircular, 0.7–1.4 mm, margins erose, usually glandular-toothed, sometimes nearly eglandular, surfaces glabrous;

petals white, obovate to suborbiculate, 2–5(–7) mm;

ovaries glabrous.

blooming at leaf emergence;

hypanthium conic-campanulate, 2–3 mm, glabrous externally;

sepals reflexed, oblong, 1.3–2 mm, margins entire, surfaces glabrous;

petals white, elliptic to obovate, 6–7 mm;

ovaries glabrous.

red, purple, dark purple, or black, globose, 6–14 mm, glabrous;

hypanthium deciduous, leaving discs at bases of drupes;

mesocarps fleshy;

stones subglobose to ellipsoid, not flattened, ± smooth.

dark red to black, ovoid, 6–10 mm, glabrous;

mesocarps leathery;

stones ellipsoid to subglobose, ± flattened.

= 16.