Purple loosestrife
Lythrum salicaria L. [Lythraceae]
Ezomisohagi (エゾミソハギ, 蝦夷禊萩)
Lifeform: clonal, perennial forb
Distribution: native to Europe, Asia, northwest Africa, and southeastern Australia
Habitat: shallow freshwater, marshes and fens (also established in the 4th crater on Mount Usu)
Lythrum L. in Japan
L. anceps (Koehne) Makino (ミソハギ): native to Japan, but not originally in Hokkaido
L. californicum Torr. et A.Gray (アメリカミソハギ): exotic to Japan (not reported from Hokkaido)
L. hyssopifolia L. (コメバミソハギ): exotic to Japan (not reported from Hokkaido)
L. salicaria L. (エゾミソハギ)
Lythrum salicaria in Hokkaido
In Sarobetsu Mire, northern Hokkaido, on August 20 1989.