Flora of North America species comparison

with terminal end buds, glabrous.

with terminal end buds, densely hairy.

persistent;

petiole 5–8 mm, glabrous, eglandular;

blade narrowly elliptic to elliptic or oblanceolate, 5–10 × 1.5–4 cm, base cuneate to obtuse, margins entire or spinose-serrate, sometimes undulate, teeth sharp, eglandular, apex usually acute to short-acuminate, sometimes obtuse-apiculate, apicula acute, surfaces glabrous, abaxial glandular, glands 2, proximal, flat, circular to oval.

deciduous;

petiole 2–7 mm, hairy, eglandular;

blade obovate to oblong-elliptic, 3–6(–7.5) × 1.7–3.5(–4.7) cm, base obtuse to rounded, margins coarsely, singly to doubly serrate, teeth sharp, usually eglandular, sometimes glandular, glands dark, spheric, apex abruptly short-acuminate to acute, abaxial surface tomentose, adaxial rugose, hairy, sometimes sparsely so.

12–30-flowered, racemes;

central axes 13–30(–43) mm, leafless at bases.

usually solitary flowers, sometimes 2-flowered fascicles.

1–4 mm, glabrous.

0–5 mm, hairy.

usually bisexual, proximal sometimes staminate, blooming before leaf emergence;

hypanthium cupulate, 2.5–3 mm, glabrous externally;

sepals spreading, semicircular, 0.5–1 mm, margins usually entire, sometimes glandular-toothed, surfaces glabrous;

petals white, suborbiculate to elliptic, 1–1.5 mm;

ovaries glabrous.

blooming before or at leaf emergence;

hypanthium tubular, 3.5–6 mm, glabrous or sparsely hairy (especially at bases) externally;

sepals spreading, ovate, 2.5–3.5 mm, margins serrate, sometimes glandular, abaxial surface hairy, adaxial glabrous;

petals white to pale pink (pink in bud), obovate or elliptic to suborbiculate, 9–13 mm;

ovaries glabrous proximally, villous distally.

black, ovoid, 9–12 mm, glabrous;

mesocarps leathery;

stones ovoid, not flattened, usually splitting open.

red, globose, 8–15 mm, sparsely hairy;

mesocarps fleshy;

stones ellipsoid, not flattened.

= 32.

= 16.