Marsdenia tomentosa Morr.et Decne.

Japanese: キジョラン（英語表記）Marsdenia tomentosa Morr.et Decne.

An evergreen climbing woody plant of the Asclepiadaceae family that grows under evergreen forests (illustration). The stem is woody at the base and green and herbaceous at the top. The leaves are opposite, thick and oval, 7-12cm long and wide, dark green and almost hairless on the upper side, while the undersides are pale green and covered with soft hairs. They flower from August to September, with a dozen or so umbrella-shaped flowers at the end of the flower stalk that extends 2-3cm from the leaf axil. The flowers are white and bell-shaped, about 4mm in diameter, and split into five pieces at the tip. The fruit is ellipsoidal, about 15cm long, and contains many seeds. The seeds have long white hairs.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

常緑樹林下に生えるガガイモ科のつる性常緑木本（イラスト）。茎は基部木質，上部は緑色で草質。葉は対生してつき，厚質で卵円形，長さ幅ともに7～12cm，表は深緑色でほとんど無毛，葉裏は淡緑色で全面に伏した軟毛がある。花期は8～9月，葉腋（ようえき）から2～3cm伸びた花軸の先に傘状に十数花をつける。花は白色で鐘状，直径約4mm，先端は5片に裂ける。果実は楕円体で長さ約15cmあり，多数の種子を入れる。種子には長い白毛がある。

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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