Calanthe tricarinata Lindl.

in China, Sichuan, above Wolong, June 2002 (pictures 1, 2 & 3)
in China, Sichuan, Wolong, 2 May 2007 (pictures 4, 5 & 6)
in China, Sichuan, Pujigou, May 2007 (pictures 7 & 8)