The Goldenrain tree or “Pride of India” (tree species: Koelreuteria paniculata) is an ornamental species from Asia that has been widely planted in the Spanish cities of Madrid and Barcelona. The name “Goldenrain” refers to the bright yellow flowers that cover the tree with a golden color in late spring.
There are 2 of these unusual trees on the property. I have never seen one in Tucson before. They are similar to China Berries, with papery seed pods instead of “berries”.