Flora of North America species comparison

with terminal end buds, glabrous.

with axillary end buds, canescent.

deciduous;

petiole 5–10(–15) mm, not winged, glabrous, sometimes glandular distally, glands 1–4, discoid;

blade oblong to lanceolate, folded along midribs, often falcate, (5–)7–15 × 2–4.5 cm, base cuneate to obtuse, margins crenulate-serrulate, teeth blunt, glandular, apex acuminate, surfaces glabrous.

deciduous;

petiole 1–2(–6) mm, glabrous, eglandular;

blade elliptic or obovate, 0.5–1.6(–3.5) × 0.3–0.8(–2.1) cm, base cuneate, margins usually entire, sometimes irregularly serrulate (sometimes dentate on long shoots), teeth sharp to blunt, eglandular, some callus-tipped, apex usually obtuse to rounded, sometimes apiculate, surfaces glabrous.

usually solitary flowers, sometimes 2-flowered fascicles.

solitary flowers.

0–3 mm, glabrous.

0–2 mm, puberulent.

blooming before leaf emergence;

hypanthium cupulate, 4–5 mm, glabrous externally;

sepals spreading, oblong-ovate, 3.5–5 mm, margins entire, ciliate, abaxial surface hairy (especially along margins), adaxial glabrous;

petals dark pink, obovate to suborbiculate, 10–17 mm;

ovaries hairy.

unisexual, plants dioecious, blooming at leaf emergence;

hypanthium campanulate, 2–3 mm, glabrous externally;

sepals spreading, triangular, 0.7–1.5 mm, margins entire, surfaces glabrous;

petals white, obovate, 2–3.5 mm;

ovaries hairy.

yellow to orange tinged with red, globose, 40–80 mm, velutinous (glabrous in nectarines);

mesocarps fleshy;

stones ellipsoid, strongly flattened, deeply pitted, furrowed.

reddish brown, globose to ovoid, 9–12 mm, puberulent;

hypanthium tardily deciduous;

mesocarps leathery to dry (slightly splitting);

stones ovoid to subglobose, not flattened.

= 16.