Calanthe discolor Lindl.

in Japan, Honshu, May 2008 (pictures 2 & 3)
in Japan, Honshu, South of Mt. Fuji, under Phyllostachys edulis plantation, May 2008 (pictures 4 & 5)
in Japan, Honshu, Mt.Rokko, May 2008 (picture 6)