Ilex cinerea, the gray holly or Hong Kong holly, is a species of flowering plant in the family Aquifoliaceae, native to Hong Kong, Hebao Island, and Hainan in China, and to northern Vietnam. An evergreen shrub or small tree usually 3 to 6 m (10 to 20 ft) tall, it is found at higher elevations in mountain forests. It is used as a street tree in Hong Kong.

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