Looks like Silene vulgaris,Bladder Campion

Poinsettias are sprayed with growth retardants to keep them small. When I first moved to FL, I worked at PanAmerian Plants (Now Ball-PanAm)and helped grow poinsettias. One year, someone mixed the growth retardant wrong and burned the whole crop. The flowers on that one look like a Christmas Rose poinsettia. I've seen them hanging over the top of an 8 foot wall in Plant City. I've never been able to get a store-bought one to survive. It's hard, because it can take them years to grow out of the growth retardant. They're hard to root. You have to "seal" the bottoms with a lighter or by touching it to a hot stovetop (covered with aluminum foil so as not to get the sap on the burner) to stop the sap from flowing out, and they need a lot of humidity. I got one to root once by making a "greenhouse" with a 1-gallon pickle jar over the pot.

Hi, This is Silene vulgaris (see link below) http://www.cas.vanderbilt.edu/bioimages/image/s/sivu--flinflor13777.htm regards, Ted

a mystery to me, KK but I'd like to know. Did you receive an answer elsewhere? If not, can you say where it came from and are you agreeable to my sharing the photo ?