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Aponogeton rigidifolius : ウィキペディア英語版 | Aponogeton rigidifolius
''Aponogeton rigidifolius'' is native to Sri Lanka. In the wild it grows in deep water at temperatures of 68 to 77F (20 - 25°C) in sandy soil with the water pH at 7.2.〔 Rataj, Dr. K and Horeman T.J. ''Aquarium Plants'', TFH, 1977〕 ==Description== The creeping rhizome is cylindrical and about .5 inch (1cm) thick. The leaves stay submerse, are firm (almost leather-like and seem immune to most fish and snails) about 8 to 23 inches long (20 - 60cm) and 1 to 1.6 inches wide (2.5 - 4cm). The margins of the leaves are flat to slightly undulate with a distinct midrib. In colour they are a dark green to reddish colour. The inflorescence has a single spike with white flowers and small fruits.
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「Aponogeton rigidifolius」の詳細全文を読む
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