Castanopsis argentea

Castanopsis argentea is an evergreen tree native to Indonesia, where it is known as sarangan. It is mostly found in undisturbed forests of West Java around Mount Gede and Mount Halimun, with a density of ca. 12 trees/hectare. It also occurs in national parks, nature reserves and at high altitude forests in other areas of Java. It is almost extinct from lowland areas in Sumatra, due to the clearance of the land for palm oil plantations. The fruits are decorated with branched spines. Each fruit cup contains one to four edible nuts that are oval or flattened and have a size of up to 2.5 cm. The fruit stalk is up to 1.5 cm long. Flowering occurs most of the year, but usually from March to April. The fruit ripens from February to November, usually May to July.

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