The nectarine is a deciduous tree, that grows 4-10 m tall, and is native to the region of Northwest China. It bears an edible juicy fruit called a peach or a nectarine, where peaches have characteristic fuzz on the fruit skin and nectarines are characterized by the absence of fuzz on the fruit's skin. The leaves are lance-like, 7–16 cm long, 2–3 cm broad, and pinnately veined. The pink flowers are produced in early spring before the leaves, and they are either solitary or paired. The fruit has yellow or whitish flesh, a delicate aroma, and smooth skin. The flesh is very delicate and easily bruised in some cultivars, but is fairly firm in some commercial varieties, especially when green. The single, large seed is red-brown, oval shaped, and is surrounded by a wood-like husk. Peaches, along with cherries, plums and apricots, are stone fruits (drupes). Cultivated nectarines are divided into cling stones and free stones, depending on whether the flesh sticks to the stone or not; both can have either white or yellow flesh. Nectarines with white flesh typically are very sweet with little acidity, while yellow-fleshed nectarines typically have an acidic tang coupled with sweetness, though this also varies greatly. Both colors often have some red on their skin.