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Malus sieversii

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Malus sieversii is a wild apple native to the mountains of Central Asia in southern Kazakhstan. It has recently been shown to be the primary ancestor of most cultivars of the domesticated apple (Malus domestica). It was first described (as Pyrus sieversii) in 1833 by Carl Friedrich von Ledebour, a German naturalist who saw them growing in the Altai Mountains. It is a deciduous tree growing 5 to 12 metres (16 to 39 ft), very similar in appearance to the domestic apple. Its fruit is the largest of any species of Malus except domestica, up to 7 cm diameter, equal in size to many modern apple cultivars. Unlike domesticated varieties, its leaves go red in autumn: 62.2% of the trees in the wild do this compared to only 2.8% of the regular apple plant or the 2,170 English cultivated varieties. …

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