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Rotala ramosior : ウィキペディア英語版 | Rotala ramosior
''Rotala ramosior'' is a species of flowering plant in the loosestrife family known by the common name lowland rotala. This aquatic or semiaquatic plant is native to North America, where it grows in lakes, streams, and irrigation ditches. The branching stems of the plant grow to about 40 cm long. Leaves are decussate, arranged oppositely in perpendicular pairs along the stems. The leaves are linear to lance-shaped to oval and up to 5 cm long. Flowers occur singly in leaf axils. Each has triangular sepals with long, narrow appendages and usually four tiny white petals in shades of pink to white. This plant is sometimes grown in aquaria. == 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「Rotala ramosior」の詳細全文を読む
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