Japanese kokusagi - Japanese kokusagi

Japanese: コクサギ - こくさぎ

A strong-smelling deciduous shrub of the Rutaceae family with one genus and one species, growing to a height of 1.5-2m (illustration). It usually grows under trees in mountains and fields. The papery leaves are simple, irregularly alternate with two on each side (known as a phyllotaxy), obovate or oblong, 5-12cm long, hairless, pointed at the tip, broadly wedge-shaped at the base, and usually without sawtooth edges. Dioecious, yellow-green flowers grow in the leaf axils in April. Male flowers grow in racemes 2-4cm long. The flowers are tetrameric, about 6mm in diameter, and have bright spots on the petals.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

強臭のある1属1種のミカン科の落葉低木で高さ1.5～2mとなる（イラスト）。通常，山野の木の下に生える。紙質の葉は単葉で，1側に2葉ずつを出す変則的互生(コクサギ型葉序という)をし，倒卵形または長楕円形，長さ5～12cm，毛がなく，先端はとがり，基部は広いくさび形，通常ふちには鋸歯がない。雌雄異株で4月頃，葉腋（ようえき）に黄緑色の花をつける。雄花は総状花序で長さ2～4cm。花は4数性で径6mmぐらい，花弁には明点がある。

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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