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(Upload on February 17 2024) [ 日本語 | English ]

Potamogeton L. (ヒルムシロ) in Japan Futohirumushiro (フトヒルムシロ, 太蛭蓆), Fryer pondweed, Fryer waterweed or Fryer potamogeton Lifeform: aquatic perennial forb, developing long and thick rhizomes Distribution: Korea - Japan - Kuril Habitat: nutrient-poor wetland (湿原), in particular, in ponds

Leaf: submerged and floated (submerged leaf lacks stipe or develops unclear stipe) Synonyms: Potamogeton subsessilifolius E. G. Camus Potamogeton torquatus Koidz.

Potamogeton fryeri in Hokkaido

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[1-3] in a northern part of Utasai wetland (歌才湿原), southern Hokkaido, on October 12 2023.