Water lettuce

Japanese: water lettuce(英語表記)waterlettuce
Water lettuce

…A floating aquatic plant of the Araceae family, a perennial plant widely distributed in the tropics. It is also called water lettuce and is widely known for use in aquariums. The leaves are obtuse-tipped, rounded or obovate, densely covered with velvety hairs, and wavy, and grow radially from very short stems. …

*Some of the terminology that mentions "water lettuce" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…サトイモ科の浮遊性水草で,熱帯に広く分布する多年草。ウォーター・レタスwater lettuceとも呼ばれ,アクアリウム用として広く知られている。葉は先端鈍形の円倒卵形または倒卵形でビロード状の微毛が密生し,波状となり,ごく短縮した茎に放射状に密集する。…

※「water lettuce」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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