From what I know, the Gracidea Flower can only be obtained with a TRU Shaymin and the Japanese version requires the Shaymin obtained at the 11th movie. I saw a video by Marriland where he used a TRU Shaymin in his Japanese Platinum to get the Gracidea Flower which left me confused. Does that mean you can use any Shaymin to get the flower for any version?
Yes, you can, I think. :[