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(Upload on July 20 2019) [ 日本語 | English ]

Ibo-ukikusa (イボウキクサ, 疣浮草), gibbous duckweed, swollen duckweed or fat duckweed Kobu-ukikusa (コブウキクサ, 瘤浮草) Lifeform: evergreen, aquatic forb → mostly dependent on asexual reproduction

Distribution: cosmopolitan, excluidng tropical and polar regions exotic to Japan (reported from central and western parts of Japan) Habitat: stagnant water Chromosome number: 2n = 40, 50, 70 and 80

Lemna gibba in Japan

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[1/2] in a small gardening pot found out in the campus of Sophia University, Tokyo, on May 24 2019.