At least I think it's a mimosa tree, long 'fronds' on each branch, holding
many small leaves which curl up at night, the tree itself had pinkish blooms
on it and had long pods with a few seeds in each, one of which ended up in
my suitcase (in Turkey)...would there be any possibility of having it as a
houseplant?....there's a picture here of one:
http://www.gardenerscorner.com/Mimosa.html