Flora of North America species comparison

with axillary end buds, glabrous or canescent.

with axillary end buds, usually glabrous, sometimes hairy.

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).

deciduous;

petiole 4–18 mm, hairy, rarely only adaxially, usually glandular distally, glands 1–2(–4);

blade usually elliptic, sometimes broadly elliptic, obovate, ovate, or oblong, 6–12 × 3–7 cm, base usually obtuse to broadly rounded, sometimes subcordate, margins coarsely, doubly serrate, teeth sharp, eglandular, apex usually abruptly acuminate to acuminate, rarely acute, abaxial surface densely hairy, adaxial rugose, glabrous or hairy.

solitary flowers or 2-flowered fascicles.

2–5-flowered, umbellate fascicles.

0–4 mm, glabrous.

4–20 mm, usually glabrous, sometimes sparsely hairy.

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.

blooming before leaf emergence;

hypanthium obconic, 2–4.5 mm, glabrous or hairy externally;

sepals reflexed, ovate to lanceolate, 1.5–4 mm, margins entire or irregularly or obscurely glandular-toothed, sometimes 2-fid at apices, ciliate, surfaces hairy;

petals white, sometimes turning pink, elliptic to obovate, 5–10 mm;

ovaries glabrous.

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

hypanthium tardily deciduous;

mesocarps leathery to dry;

stones ovoid, ± flattened.

purplish red to dark blue, glaucous, subglobose to ellipsoid, 15–30 mm, glabrous;

mesocarps fleshy;

stones ovoid-ellipsoid, strongly flattened.