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(First upload on February 1 2016. Last on July 25 2019) [ 日本語 | English ]

Nymphoides Seg. (アサザ) in Japan

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N. aquatica (Walter) Kuntze (ハナガガブタ), banana plant, exotic to Japan, white-flowered N. aurantiaca (Dalzell) Kuntze (ヒメアサザ), white-flowered

N. coreana (H. Lev.) H. Hara (ヒメシロアサザ), China - Japan, white-flowered, 2n = 36 N. hydrophylla (Lour.) Kuntze (ヒメガガブタ), India - Japan (Ryukyu)

N. indica (L.) Kuntze (ガガブタ), cosmopolitan, white-flowered N. peltata (S. G. Gmel.) Kuntze (アサザ)

Nymphoides peltata in Japan

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Asaza (アサザ, 浅沙/阿佐佐), fringed water-lily, yellow floatingheart (USDA), or water fringe Lifeform: floating-leaved, perennial forb Distribution: Eurasia including the whole of Japan RDB: near-threatened (NT) Habitat: wetlands Developing persistent seedbank Eastern Europe: endangered North America: invasive

Flower: yellow (↔ all species in this genus produce white flowers) Synonyms: Limnanthemum peltatum S. G. Gmel. Nymphoides nymphaeoides (L.) Britton

1 2 3
4 5 6
[1-3] in a pond on Tsukiura Forest Park faced to Toya Lake on September 15 2015. [4-6] in an artificial pond, Totemachi Hotoria Plaza, Chiyoda Ward, Tokyo, on June 7 2019.