Koelreuteria elegans subsp. formosana

An evergreen tree to 10m tall, with a wide spreading crown and rough, furrowed bark. The large, 2-pinnate leaves are composed of opposite pairs of finely toothed, oval leaflets. Golden yellow flowers are borne in pyramidal clusters to 30cm long in late summer; these are followed by unusual, inflated, pink-flushed fruit capsules. Not hardy in the British Isles