Ilex crenata – box-leaved holly is a species of holly native to eastern China, Japan, Korea, Taiwan, and Sakhalin. It is an evergreen shrub or small tree growing to a height of 3–5m tall, with a trunk diameter up to 20 cm. The leaves are glossy dark green, small, 10–30mm long and 10–17mm broad, with a crenate (wavy) margin, sometimes spiny. The plants are dioecious having separate male and female plants, with white, four-lobed flowers. The fruit is a black drupe stone fruit 5mm diameter, containing four seeds. It grows well in acidic soil, between a pH of 3.7 and 6.0.