Taiwanese Rain Tree

Koelreuteria elegans, more commonly known as flamegold rain tree, is a deciduous tree 15–17 metres tall. There are currently two subspecies under this taxa, i.e., K. elegans ssp. elegans, which is endemic to Fiji, and K. elegans ssp. formosana, which is endemic to Taiwan. The subspecies formosana, commonly known as Taiwanese golden rain tree, is widely grown throughout the tropics and sub-tropical parts of the world as a street tree.

K. elegans blossoms in autumn. Flowers are small, to 5 mm in diameter, and occur in terminal panicles. The flowers have four to five unequal petals, butter-yellow with red base. The flowers contains eight stamens with hairy filaments, and the ovary is three-celled, red while flowering.