Flora of North America species comparison

with terminal end buds, glabrous.

with terminal end buds, glabrous.

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.

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.

usually solitary flowers, sometimes 2-flowered fascicles.

12–30-flowered, racemes;

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

0–3 mm, glabrous.

(2–)3–6 mm, glabrous.

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.

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.

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

mesocarps fleshy;

stones ellipsoid, strongly flattened, deeply pitted, furrowed.

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

mesocarps leathery;

stones subglobose, not flattened.

= 16.