Grass Labyrinth , Kusa meiky? is a Japanese film directed by Shji Terayama which was released in France in 1979 and in Japan in 1983.
Grass Labyrinth was originally one of the installments in a French movie package called Private Collections, the other two sections being directed by Walerian Borowczyk and Just Jaeckin, both associated with avantgarde films with strong sexual content. Grass Labyrinth was the longest of the three and was later 1983 released as a separate film in Japan.
Source: Wikipedia