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A deciduous shrub free from down in all its parts, very much resembling D. mezereum in growth. Leaves oblanceolate, tapered at the base to a short stalk, rounded or shortly pointed at the apex, 2 to 3 in. long, 3⁄8 to 1 in. wide, dark dull green. Flowers shortly stalked and produced in lateral clusters with the leaves, greenish yellow, nearly 1⁄2 in. wide; lobes ovate, rounded at the end. Fruit red, oval, 1⁄3 in. long.
Native of Central and South Japan; named by Gray in 1858–9 from specimens collected by Charles Wright. It was introduced around 1910 but had probably been in cultivation before and lost. It is easily recognised by its similarity to the mezereon in leaf and growth and by its yellowish flowers being produced when the plant is leafy. The bark is tough and fibrous.
D. jezoensis Maxim