Comments
provided by eFloras
This species is vulnerable to extinction because of its limited range and exploitation. It is believed to be the principal ancestor of commercially grown apples.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
provided by eFloras
Trees 2–10(–14) m tall; branchlets dark grayish red when old, terete, short, robust, puberulous when young, slightly curved, glabrescent when old; buds dark red, ovoid, villous abaxially. Stipules caducous, lanceolate, 3–5 mm, membranous, margin white ciliate, apex acuminate; petiole 1.2–3.5 cm, sparsely pubescent; leaf blade ovate or broadly elliptic, rarely obovate, 6–11 × 3–5.5 cm, abaxially densely villous when young, sparsely pubescent when old, adaxially sparsely pubescent along veins, base cuneate, rarely rounded, margin obtusely serrate, apex acute. Corymb umbel-like, 4–6 cm in diam., 3–6-flowered; bracts caducous, lanceolate, membranous, margin glandular serrate when young, apex acuminate. Pedicel ca. 1.5 cm, white tomentose. Flowers 3–3.5 cm in diam. Hypanthium campanulate, abaxially tomentose. Sepals broadly lanceolate or triangular-lanceolate, ca. 6 mm, longer than hypanthium, both surfaces tomentose, margin entire, apex acuminate. Petals pinkish, tinged rose when in bud, obovate, 1.5–2 cm, base shortly clawed, apex rounded. Stamens 20, unequal, ca. 1/2 as long as petals. Ovary 5-loculed, with 2 ovules per locule; styles 5, ca. as long as or slightly longer than stamens, white tomentose basally. Pome yellowish green, tinged red, globose or depressed-globose, 3–4.5(–7) cm in diam.; fruiting pedicel 3.5–4 cm, white tomentose; sepals persistent, reflexed; with cavity at apex. Fl. May, fr. Aug–Oct. 2n = 34*.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
provided by eFloras
W Xinjiang [Kazakhstan, Russia].
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
provided by eFloras
Mountain summits, slopes, valleys, often the dominant tree of forests; 1200--1300 m.
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- cc-by-nc-sa-3.0
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Pyrus sieversii Ledebour, Fl. Altaic. 2: 222. 1830.
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- cc-by-nc-sa-3.0
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA