Flora of North America species comparison

with axillary end buds, glabrous or canescent.

with axillary end buds, 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 4–7 mm, hairy, eglandular;

blade elliptic to obovate, 1.5–4 × 1–2.2 cm, base obtuse to rounded, margins crenulate-serrulate, teeth blunt, often glandular, apex acute to obtuse, abaxial surface hairy (especially along midribs and veins), adaxial glabrate.

solitary flowers or 2-flowered fascicles.

usually solitary flowers, sometimes 2-flowered fascicles.

0–4 mm, glabrous.

0.5–5(–8) mm, usually glabrous, rarely 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 cupulate, 1.5–2.5 mm, glabrous externally;

sepals spreading, oblong, 1.5–2.5 mm, margins glandular-toothed, surfaces glabrous or adaxially hairy at bases;

petals white, elliptic, 4–8 mm;

ovaries glabrous.

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

hypanthium tardily deciduous;

mesocarps leathery to dry;

stones ovoid, ± flattened.

bluish black, globose, 10–15 mm, glabrous;

mesocarps fleshy;

stones subglobose, ± flattened.

= 32.