Chaenomeles are native to eastern Asia in Japan, China and Korea. The leaves are alternately arranged, simple, and have a serrated margin. The flowers are 3–4.5 cm diameter, with five petals, and are usually bright orange-red, but can be white or pink; flowering is in late winter or early spring. The fruit is a pome with five carpels; it ripens in late autumn. Although all quince species have flowers, gardeners in the West often refer to these species as "flowering quince", since Chaenomeles are grown ornamentally for their flowers, not for their fruits. The fruits are very hard and astringent and very unpleasant to eat raw, though they do soften and become less astringent after frost (when they are said to be "bletted"). They are, however, suitable for making liqueurs, as well as marmalade and preserves, as they contain more pectin than apples and true quinces. The fruit also contain more vitamin C than lemons (up to 150 mg/100 g).