This is a modular flower. Five squares are folded and attached with a little bit of glue. There is an exciting action as you open up the attached modules. Then a few finishing touches produces the 3D flower. Glue is used. It is also called mountain peach by PaperART.
Video on Alexandra Abovyan's youtube channel--https://www.youtube.com/watch?v=QxRqTDTXYDc --