I am her sister,  She said it was some kind of flower but i look at it and think it may be papaya, I will tell her to take a picture of hers that is a flower, and see if they look alike.  It looks extremely similar. We have a neighbor that also has the flower tree/bush that is not the papaya but they also do not know the name of it...now I want to know as well.  Have searched just now and can not find it on line...