I've had this happen to my photos several times, but I'm not sure of the reason why. Can one part of the picture become so out of focus that it disappears into the rest of the photo. Here are the few of mine and I will list where the stem/stalk is supposed to be.
Coming from the top and curling towards the upper left corner.
Simply the bottom
Also from the bottom
I'm not exactly sure how this happened, but it did. And it left me with some disembodied flowers and mushrooms.