Laburnum × watereri (or Laburnum watereri), is a naturally occurring hybrid species of Laburnum, native to Central Europe. Its parents are common laburnum, Laburnum anagyroides, and alpine laburnum, Laburnum alpinum. A small deciduous tree or large shrub, it is a popular garden plant, called golden chain tree for its spectacular display of hanging clusters of yellow pea-like blossoms.[1] It can be trained to take forms such as arches and espaliers.
The best known cultivar is 'Vossii', which has gained the Royal Horticultural Society's Award of Garden Merit.[2] Growing eventually to 8m (26feet) tall and broad, it bears pendent 60cm (20inches) racemes of bright yellow flowers in spring. It prefers a position in full sun.[2]
All parts of the plant are poisonous, although mortality is very rare.[3]