The Chinese rain tree (species name: Koelreuteria elegans) is a cousin of the Goldenrain tree. These two tree species have very similar and distinctive looking seed pods as seen in the image above.
The leaves of the Chinese rain tree are even-pinnate with individual leaflets having a lanceolate to acuminate shape with a serrate margin and a pinnate venation.
This native Taiwanese tree, like its cousin, it used as an ornamental street tree in the warmer sub-tropical zones of the world. This particular tree is in the botanical garden of the University of Malaga in southern Spain.
The seed pods are in clusters at the terminal tips of the branches as seen above.