I am not sure if this is a tree or a type of bush but here are some pics, I hope somebody will b able to help Here are some pics and a close up
Yes, Tamarix. With flowers of this deep pink shade and in large terminal panicles, I suspect T. chinensis.
This web page says there is variation in color and that some cultivars of T. chinensis have been distinguished by name. http://www.arthurleej.com/p-o-m-June05.html