This is a photograph of a small version of a flowering tree. There are many of these trees in the suburbs of Cairo (Egypt). Our friend grew this from a seed - he can't remember what it was like, being a compulsive seed collector.
It has an almost hibiscus like flower, but the flowers appear well before the leaves, which are a blueish green, and the leaves on the plant at the moment are only about 3 cm long - apparently they do get bigger, but are not huge. Unfortunately I don't think the leaves in the background are those on the plant with the flower, but from a different self-seed-collected tree.
He's a knowledgeable gardener, but hasn't seen anything like this except in the streets of Cairo. I promised to try to identify it for him.