floating-leaved plant

…Aquatic plants are also called mizukusa. They are submerged plants such as waterweed and shrimp grass, whose entire plant body is underwater with its roots on the bottom; floating-leaved plants such as water shield and pondweed, whose leaves float on the water surface; emergent plants such as cattails and lotus, whose leaves and stems are above the water surface; and floating plants such as duckweed and bladderwort, whose entire plant body does not touch the bottom and floats on or below the water surface. In some cases, the term is limited to freshwater higher plants, while in other cases it includes marine higher plants such as eelgrass and large algae.

*Some of the terminology that refers to "floating-leaved plant" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…水生植物のことで〈みずくさ〉ともいう。植物体全体が水中にあり，根が水底についているクロモ，エビモなどの沈水植物と，ジュンサイ，ヒルムシロなどの水面に浮かぶ葉をもつ浮葉植物floating‐leaved plant，ガマ，ハスなどの葉や茎が水面上にでる抽水植物emergent plant(挺水植物ともいう)，根が水底につかず，植物体全体が水面や水面下で浮遊するウキクサ，タヌキモなどの浮水植物floating plantからなる。淡水産の高等植物に限る場合と，アマモなどの海水産の高等植物や大型藻類まで含める場合がある。…

※「floating-leaved plant」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