They really mean "pattern may vary"
"For the black floral version: I understand that it says "pattern may vary" which makes sense, however, I ended up ordering and exchanging this dress 3 times just to try to get one that looks remotely looks similar to the one on the photo. Every dress I received had no white flowers on the front of the dress, just the purple/blue ones and two large white flowers only on the back of the dress - almost looked like what was supposed to be on the front of the dress ended up on the back somehow. Just wish that the pattern layout was little more consistent with what is shown in the picture"































