This is a very strange flower. Actually it is a cutting from a flowering bush. The bush is totally covered with these very floppy flowers.
The bush grows to be the size of a small tree. The strange thing about it is that the flowers always look like they are dying - but they're not - they are just droopy by nature.
I pruned this specimen from a neighbor's bush - the branches were hanging over the wall.
My daughter drove by when I was in the middle of the street - pruning shears in hand.
She rolled down the window and said "oh my God Mother what ARE you doing?" "Just pruning Tracy's bush - I'm going to scan it" I replied.
I recently joined an online gardening group called Dave's Garden and posted an image of this scan and asked what it was - within a few hours I got my answer.
It is a mussaenda - a hybrid between M. erythrophylla and M. philippica. Common name is Queen Sirikit.
The mussaenda is a shrub related to coffee trees and is native to Asia, the West Indies and parts of tropical West Africa.