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Irideae is a tribe included in the well-known Iridaceae family. It contains many species in five genera which are wildly distributed in the Old World. A member of the tribe is the best-known genus from the family - Iris from which it takes its name. Iris is the larger genus in the tribe. The blooms, which are often with scent and collected in an inflorescence, have six petals. Those are identical only in the genus ''Ferraria''. The ovary is 3-locular and contains seeds which are usually circular and pellet-like. The members has the typical sword-shaped leaves and the rootstock is usually rhizome or corm. Only two subgenera of '' Iris'' have bulbs. These are ''Xiphium'' and ''Hermodactyloides''. Many of the species are popular ornamental plants, but many are threatened with extinction. List of genera: * ''Dietes'' * ''Ferraria'' * ''Hermodactylus'' * ''Iris'' * ''Moraea'' == References == 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「Irideae」の詳細全文を読む スポンサード リンク
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