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Nuphar pumila : ウィキペディア英語版 | Nuphar pumila
''Nuphar pumila'' (the small yellow pond-lily) is an aquatic perennial plant in the Nymphaeaceae family. It is also known as least or dwarf water lily because it is the dwarf species of ''Nuphar lutea''; while ''Nuphar lutea'' has a star-shaped form of the stigma disc and glabrous leaf undersides, ''Nuphar pumila'' has a round stigma disc and the undersides of its leaves are fine-haired. Its flowers bloom from July to August and are typically pollinated by flies. The plant is more successful in sunny environments, predominantly in lakes, ponds and slow-flowing parts of rivers from Northern and Central Europe to Northern Asia, with a few noted habitats in North America; ''Nuphar pumila'' is considered endangered in France, Switzerland and the United Kingdom. == Description == ''Nuphar pumila'' flowers typically have 4–6 petals, are actinomorphic, have many stamen and range from yellow to green depending on maturity. Its floating leaves are large and ovate, with pinnate venation, while the submerged leaves are smaller and round; the plant also has a thick creeping rhizome.
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「Nuphar pumila」の詳細全文を読む
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