Alchornea trewioides (Benth) Mueller-Arg.

Japanese: オオバベニガシワ（英語表記）Alchornea trewioides (Benth) Mueller‐Arg.

A deciduous shrub of the Euphorbiaceae family, used for cut flowers and as a garden tree, with beautiful bright red young shoots when they first sprout. It is sometimes mistakenly called Mallotus japonicus by florists, but this is a different species. The alternate cordate to circular-cordate leaves are red when young, but later turn green. The petioles are long and have serrated edges. They flower in spring, and although both sexes are monoecious, they produce small spike-like flowers in different inflorescences. Native to southeastern mainland China, in Japan they are cultivated outdoors in warm areas west of the Kanto region. They tend to produce adventitious buds from the roots, and can multiply rapidly to form clumps.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

萌芽のときの若芽が鮮紅色で美しく，切花や庭木にされるトウダイグサ科の落葉低木。花屋でアカメガシワと誤って呼ばれることもあるが，別物である。互生する心形から円心形の葉は，若葉のときは紅色を帯びるが，のち緑色となる。葉柄は長く，葉縁には鋸歯がある。開花は春，雌雄同株だが，異なった花序に，小さな花を穂状につける。中国大陸南東部原産で，日本では関東以西の暖地の露地で栽植される。根から不定芽を生じやすく，急速に繁殖し株立ちとなる。

出典　株式会社平凡社世界大百科事典第２版について　情報

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