Jisho

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Wikipedia definition
1. WolffiaWolffia is a genus of 9 to 11 species which include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. Wolffia species are free-floating thalli, green or yellow-green, and without roots. The flower is produced in a depression on the top surface of the plant body. It has one stamen and one pistil.
Read “Wolffia” on English Wikipedia
Read “ミジンコウキクサ” on Japanese Wikipedia
Read “Wolffia” on DBpedia

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