Streptopus streptopoides (Ledeb.) Frye & Rigg var.japonicus (Maxim.) Fassett.

Pictures 1 to 4 in Japan, Honshu, Mt. Fuji, May 2008
Pictures 5, 6 & 7 in Japan, Honshu, Gomi Pond, June 2010
Pictures 8, 9, 10 & 11 in Japan, Honshu, Mt. Higashitate, June 2010