- Laburnum, genus Laburnum - flowering shrubs or trees having bright yellow flowers; all parts of the plant are poisonous
--1 is a kind of rosid dicot genus
--1 is a member of Papilionoideae, subfamily Papilionoideae
--1 has members:Scotch laburnum, Alpine golden chain, Laburnum alpinum; common laburnum, golden chain, golden rain, Laburnum anagyroides