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(First upload on December 16 2008. Last on September 7 2025) [ 日本語 | English ]

Lythrum L. (ミソハギ) Ezomisohagi (エゾミソハギ, 蝦夷禊萩), purple loosestrife Lifeform: clonal, perennial forb, with 50-150 cm in height Distribution: native to Europe, Asia, northwest Africa, and southeastern Australia Habitat: shallow freshwater, marsh and fen ⇒ wetland (湿原) established in the 4th crater and Yu-kun crater on Mount Usu (flora)

Leaf: adverse f. glabrum (Ledeb.) Köhne (ケナシエゾミソハギ)

Lythrum salicaria in Hokkaido

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01 02 03 04
05 06 07
08 09 10
[1] in Sarobetsu Mire, northern Hokkaido, on August 20 1989. [2/3] in Abira wetland, central Hokkaido, on July 16 2012. [4] in Ono Pond (大野池), HU, on August 31 2012. [5] in Koshimizu Natural Flower Garden, eastern Hokkaido, on August 30 2020. [6] in Sosei River near N10/E1, North Ward, Sapporo, on September 10 2021. [7] along Atsuma Coast on August 2 2022. [7] in the wetland at the former site of the canceled Atsuma wind power project on August 4 2025. [9/10] along a paved road in Utasai wetland (歌才湿原), southern Hokkaido, on October 16 2024. Records: along a paved road in front of the Toya Lake Experimental Station of Hokkaido University on September 4 2018.

Mount Usu

01
[1] adjacent to a erosion prevention dam near Yu-kun Crater (K-1) on August 17 2018.