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Chinese Plant Names | Family List | Rosaceae | Pyrus

Pyrus sinkiangensis Yu


Description from Flora of China

Trees to 6–9 m tall. Branchlets purplish brown or grayish brown, terete, glabrous, white lenticellate; buds ovoid, apex acute; scales white pubescent at margin. Stipules caducous, linear-lanceolate, 8–10 mm, membranous, white tomentose, margin sparsely glandular denticulate, apex acuminate; petiole 3–5 cm, white tomentose when young, soon glabrous; leaf blade ovate, elliptic, or broadly ovate, 6–8 × 3.5–5 cm, glabrous or white tomentose when young, base rounded, rarely broadly cuneate, margin crenate or subentire basally, serrulate apically, apex shortly acuminate. Raceme umbel-like, 4–7-flowered; peduncle tomentose when young, glabrescent; bracts caducous, linear-lanceolate, 1–1.3 cm, membranous, margin sparsely glandular denticulate and long tomentose, apex acuminate. Pedicel 1.5–4 cm, tomentose when young, glabrescent. Flowers 1.5–2.5 cm in diam. Hypanthium cupular, abaxially glabrous. Sepals triangular-ovate, 6–7 mm, abaxially brown tomentose, margin glandular denticulate, apex acuminate. Petals white, obovate, 1.2–1.5 × 0.8–1 cm, shortly clawed at base, apex obtusely rounded. Stamens 20, less than or ca. 1/2 as long as petals. Ovary 5-loculed, with 2 ovules per locule; styles 5, not exceeding stamens, pubescent basally. Pome yellowish green, ovoid or obovoid, 2.5–5 cm in diam., 5-loculed; fruiting pedicel 4–5 cm, thickened distally, glabrescent; sepals persistent. Fl. Apr, fr. Aug–Sep. 2n = 34*, 51*.

This species might be a natural hybrid between Pyrus communis and P. bretschneideri.

200--1100 m. Cultivated in Gansu, Qinghai, Shaanxi. Native in Xinjiang.


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