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''Arum'' is a genus of flowering plants in the family Araceae, native to Europe, northern Africa, and western and central Asia, with the highest species diversity in the Mediterranean region.〔(Kew World Checklist of Selected Plant Families ) 〕〔Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew. 〕 Frequently called "arum lilies", they are not closely related to the true lilies ''Lilium''. Plants in the closely related tribe ''Zantedeschia'' are also called "arum lilies". They are rhizomatous, herbaceous perennial plants growing to 20–60 cm tall, with sagittate (arrowhead-shaped) leaves 10–55 cm long. The flowers are produced in a spadix, surrounded by a 10–40 cm long, coloured spathe, which may be white, yellow, brown or purple; some species are scented, others not. The fruit is a cluster of bright orange or red berries. All parts of the plants including the berries are poisonous,〔''Nelson, L. et al. (2007) Handbook of Poisonous and Injurious Plants. New York Botanical Garden''.〕 containing significant amounts of calcium oxalate as raphides. The genus name is Latinized form of the Greek name for these plants, ''aron''. ==Species== Formerly placed here: *''Arisaema triphyllum'' (syn. ''Arum triphyllum'') *''Dracunculus vulgaris'' (syn. ''Arum dracunculus'') *''Typhonium venosum'' (syn. ''Arum cornutum'') 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「arum」の詳細全文を読む スポンサード リンク
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