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Dioscorea communis
''Dioscorea communis'' (sometimes placed in the segregate genus ''Tamus'') is a species of flowering plant in the yam family Dioscoreaceae and is commonly known as black bryony, lady's-seal, and black bindweed.
==Description==
It is a climbing herbaceous plant growing to 2–4 m tall, with stems that twine clockwise. The leaves are spirally arranged, heart-shaped, up to 10 cm long and 8 cm broad, with a petiole up to 5 cm long. It is dioecious, with separate male and female plants. The flowers are individually inconspicuous, greenish-yellow, 3–6 mm diameter, with six petals; the male flowers produced in slender 5–10 cm racemes, the female flowers in shorter clusters. The fruit is a bright red berry, 1 cm diameter. Its fairly large tuber is, like the rest of the plant, poisonous.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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