Flora of North America species comparison

with axillary end buds, glabrous or canescent.

with terminal end buds, glabrous.

deciduous;

sessile;

blade oblanceolate to linear, 0.5–2 × 0.1–0.2(–0.4) cm, base long-attenuate, margins nearly entire or obscurely and remotely serrulate in distal 1/3, teeth blunt to sharp, sometimes glandular, apex rounded to acute, surfaces puberulent or glabrous or low-papillate (var. punctata).

persistent;

petiole 8–16 mm, glabrous, eglandular;

blade elliptic to broadly elliptic, 4–10 × 2–4.5(–6.5) cm, base cuneate, obtuse, or nearly rounded, margins undulate, entire, apex acute to acuminate, apicula obtuse, surfaces glabrous, abaxial glandular, glands 2, proximal, flat, circular to oval.

solitary flowers or 2-flowered fascicles.

12–30-flowered, racemes;

central axes (11–)20–50 mm, leafless at bases.

0–4 mm, glabrous.

(2–)3–6 mm, glabrous.

unisexual, plants dioecious, blooming at leaf emergence;

hypanthium campanulate, 1.5–3 mm, glabrous externally;

sepals erect-spreading, triangular, 0.7–1 mm, margins entire, surfaces glabrous;

petals white to yellowish, elliptic, obovate, or suborbiculate, 1.4–2.5(–4) mm;

ovaries hairy.

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

hypanthium cupulate, 1.5–2.5 mm, glabrous externally;

sepals spreading, semicircular, 0.5–0.8 mm, margins usually entire, occassionally with a glandular tooth, surfaces glabrous;

petals white, obovate to suborbiculate, 1.5 mm;

ovaries glabrous.

gray to red-brown, ovoid, ± compressed, 7–15 mm, densely puberulent;

hypanthium tardily deciduous;

mesocarps leathery to dry;

stones ovoid, ± flattened.

purple-black, globose to ± ovoid, 8–12 mm, glabrous;

mesocarps leathery;

stones subglobose, not flattened.