8. Amygdalus ferganensis (Kostina & Rjabov) T. T. Yü & L. T. Lu, Fl. Reipubl. Popularis Sin. 38: 20. 1986.
新疆桃 xin jiang tao
Prunus persica (Linnaeus) Batsch subsp. ferganensis Kostina & Rjabov, Trudy Prikl. Bot., Ser. 8, Plodovolye Yagodnye Kul’t 1: 323. 1932; Persica ferganensis (Kostina & Rjabov) Kovalev & Kostina.
Trees to 8 m tall. Branchlets smooth, glabrous, lenticellate; current year’s branchlets reddish on exposed side, greenish on shady side, shiny; previous year’s branchlets reddish brown, squamose, with many lenticels. Winter buds 2 or 3 in leaf axils, pubescent. Petiole robust, 0.5–2 cm, with 2–8 nectaries; leaf blade lanceolate, 7–15 × 2–3 cm, abaxially pilose in vein axils, adaxially glabrous, base broadly cuneate to rounded, margin crenate with gland-tipped teeth, apex acuminate; secondary veins 12–14 on either side of midvein. Flowers solitary, opening before leaves, 3–4 cm in diam. Pedicel very short. Hypanthium shortly campanulate, outside green with a reddish tinge. Sepals ovate to ovate-oblong, outside pubescent. Petals pink, suborbicular to oblong, 1.5–1.7 cm in diam. Stamens many, unequal in length, shorter than petals. Ovary pubescent. Style shorter than stamens. Drupe greenish white, rarely golden yellow, sometimes with a reddish tinge, compressed globose, rarely subglobose, 3.5–6 × 4.4–7 cm, pubescent, very rarely glabrous, occasionally slightly glaucous; mesocarp succulent, sour-sweet, fragrant, separating from endocarp, not splitting when ripe; endocarp flattened globose, rarely subglobose to broadly ellipsoid, compressed on both sides, 1.7–3.5 × 1.3–3 cm, surface longitudinally furrowed and very sparsely pitted, base subtruncate, apex long acuminate. Seed bitter to slightly sweet. Fl. Mar–Apr, fr. Jul–Aug.
Cultivated in Xinjiang [cultivated in Kyrgyzstan and Uzbekistan].
This species is cultivated for its fruit, and the original, native distribution is uncertain.