:"Indian laburnum"'s the Golden Shower Tree, a distant relative of the genus Laburnum. Laburnum (also called Golden Chain)'s a genus of two species of small trees in the subfamily Faboideae of the pea family Fabaceae, Laburnum anagyroides (Common Laburnum) and L. alpinum (Alpine Laburnum). They're native to the mountains of southern Europe from France to the Balkan Peninsula. Some botanists include a third species, Laburnum caramanicum, but this native of southeast Europe and Asia Minor's usual… (More on Laburnum)