The Goldenrain tree or "Pride of India" (tree species: Koelreuteria paniculata) is an ornamental tree species from Asia that has been widely planted in Spanish cities such as Madrid, Barcelona or Málaga. The name "Goldenrain" refers to this tree species bright yellow flowers that cover the tree with a golden colour in late spring.
The flowers occur in flowers in large terminal panicles that are as large as 30cm. The image at the top of this post will give you a pretty good idea of wha the flowers look like up close.
The leaves of the Goldenrain tree are pinnate with individual leaflets that are quite serrated and irregular.
One of the most distinctive features of this tree species is its seed pods that are bladder like with paper thin skin than conceal several small ball like black seeds in a completely hollow interior. These pods start out with a green or orangy-tan color. They then turn a sort of reddish colour before they mature into a grey-tan colour.
The seedpods have three sides and the seeds themselves are about 4-5 cm in diameter.