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Trees, not suckering, 30–100 dm, not thorny. Twigs with terminal end buds, glabrous. Leaves 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. Inflorescences usually solitary flowers, sometimes 2-flowered fascicles. Pedicels 0–3 mm, glabrous. Flowers 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. Drupes yellow to orange tinged with red, globose, 40–80 mm, velutinous (glabrous in nectarines); mesocarps fleshy; stones ellipsoid, strongly flattened, ?deeply pitted, furrowed?. 2n = 16.
A small tree. It loses its leaves during the year. It grows 3-8 m tall. It has an open growth habit. The leaves have stalks. These are 5-10 mm long. The leaves are oblong to sword shaped. They have fine teeth along the edge. The leaf blades are 7-15 cm long and 2-3 cm wide. They are acute at the base and taper to the tip. The flowers occur singly. They appear before the leaves. The flowers are small and pink or white. The fruit varies in shape and size. It is round with a groove down the side. It is 5-8 cm across. It is yellow when ripe. It has one hard stone inside with holes in it. There are a very large number of cultivated varieties.
Deciduous shrubs or trees, up to 8 m. Twigs glabrous. Leaves lanceolate, 5-8(-15) by 1.5-2 cm, margin serrate, basal glands on top of petiole or at base of blade in the margin. Flowers appearing before the leaves, often in pairs next to axillary buds, 5-merous, pedicels 0. Petals pink. Stamens 35-40. Ovary hairy to glabrous. Fruits globular, faindy furrowed longitudinally, 3-8 cm diam., exocarp hairy (peach) or glabrous (nectarine), yellow to red, mesocarp fleshy, yellow to red, endocarp thick and hard, deeply pitted and furrowed.
Small tree to 10 m; lvs lanceolate or lance-oblong, 8–15 cm; fls solitary, sessile or subsessile, usually pink and ca 3 cm wide, sometimes much smaller and nearly red, appearing in early spring before the lvs; fr subglobose, velvety, to 10 cm thick in cult. plants, usually much smaller and hard in wild plants; stone compressed, deeply pitted; 2n=16. Native of China, occasionally escaped from cult. especially southward.
Deciduous tree, up to 10 m high; unarmed. Leaves simple; blade narrowly ovate, 45-85 x 15-25 mm, apex occasionally folded, margins finely serrulate, each tooth ends in a reddish brown gland, net-veining prominent on lower surface. Flowers: solitary or 2 together; corolla 25-30 mm in diameter; petals pink; Sep. Fruit a ± globose drupe, mesocarp fleshy-juicy, endocarp hard, wrinkled or smooth.
