I. Morphological Characteristics
1, apple tree is a tree, up to 15 meters high, mostly with a rounded crown and a short trunk; branchlets are short and thick, terete, densely tomentose when young, the old branches purple-brown, glabrous; winter buds ovate, the apex obtuse, densely pubescent.
2, leaf blade elliptic, ovate to broadly elliptic, 4.5-10 cm long, 3-5.5 cm wide, apex acute, base broadly cuneate or rounded, margin with rounded-obtuse serrations, both surfaces pubescent when young, glabrous above when grown; petiole robust, ca. 1.5-3 cm long, pubescent; stipules herbaceous, lanceolate, apex acuminate, entire, densely pubescent, caducous.
3, corymb, with 3-7 flowers, clustered at the tip of branchlets, pedicel 1-2.5 cm, densely tomentose; bracts membranous, linear-lanceolate, apex acuminate, entire, tomentose; flowers 3-4 cm in diameter; calyx tube outside densely tomentose; sepals deltoid-lanceolate or deltoid-ovate, 6-8 mm, apex acuminate, entire, both inside and outside densely tomentose, sepals longer than calyx tube; petals obovate, longer than calyx tube. Petals obovate, 15-18 mm long, base shortly clawed, white, pinkish when budding; stamens 20, filaments variable in length, about half as long as petals; styles 5, the lower half densely gray-white tomentose, slightly longer than stamens.
4. The fruit is oblate, more than 2 centimeters in diameter, often with a bulge at the apex, the calyx pits are sunken, the sepals are permanent, and the fruiting pedicels are short and thick. Flowering in May, fruiting in July-October.
II. Distribution range
1. It is commonly cultivated in China in Liaoning, Hebei, Shanxi, Shandong, Shaanxi, Gansu, Sichuan, Yunnan, and Xizang. Born in the terraces of mountain slopes, plains, mines and loess hills, 50-2500 meters above sea level. Native to Europe and central Asia, the history of cultivation has been long, the world's temperate regions are planted.
2. Native to eastern Turkey, the main varieties from the genus Begonia (there are hundreds of varieties), one of which is the short-branch type - is bred to improve the reproduction of dwarf composite varieties. China, the United States and France are the leading apple producers (tons), while in terms of yields (tons per hectare) the leaders are France, Italy, the United States and Turkey.