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''Nuphar japonica'' is an aquatic plant species in the genus ''Nuphar'' found in Japan and the Korean Peninsula. It is endangered in Russia. The species was not accepted by The Plant List , which regarded it as an "unresolved name". ''Nuphar'' × ''saijoensis'' (Shimoda) Padgett is a hybrid between ''N. japonica'' and ''N. pumila''. ''N. japonica'' contains the alkaloids nupharidin, 1-desoxynupharidin, nupharamine, methyl and ethyl esters of nupharamine. The fruits also contains the alkaloids (0.06%) nupharine, beta-nupharidin, desoxynupharidin. In the rhizomes are found the steroid sitosterol, alkaloids acids, higher fatty acids (palmitic, oleic acid) and the ellagitanins nupharin A, B,〔Tannins and Related Compounds. LXXV. : Isolation and Characterization of Novel Diastereoisomeric Ellagitannins, Nupharins A and B, and Their Homologues from Nuphar japonicum DC. Chemical & pharmaceutical bulletin, 25 January 1989, volume 37, issue 1, pages 129-134 ((abstract ))〕 C, D, E and F.〔Tannins and Related Compounds. LXXIX. Isolation and Characterization of Novel Dimeric and Trimeric Hydrolyzable Tannins, Nuphrins C, D, E and F, from Nuphar japonicum DC. Chemical & pharmaceutical bulletin, 25 June 1989, volume 37, issue 7, pages 1735-1743 ((abstract ))〕 == See also == * List of freshwater aquarium plant species * List of the vascular plants in the Red Data Book of Russia 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 japonica」の詳細全文を読む スポンサード リンク
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