Laburnum in "L. anagyroides" and long in "L. alpinum". They have yellow pea-flowers in pendulous leafless racemes long in spring, which makes them very popular garden trees. In "L. anagyroides", the racemes are long, with densely packed flowers; in "L. alpinum" the racemes are long, but with the flowers sparsely along the raceme. The fruit develops as a pod and is extremely poisonous. The yellow flowers are responsible for the old poetic name 'golden chain tree' (also spelled golden chaintree or goldenchain tree). All parts of the plant are poisonous, although mortality is very rare. Symptoms of laburnum poisoning may include
Laburnum alpinum Laburnum alpinum Laburnum alpinum, the Scotch laburnum, Scottish laburnum or alpine laburnum, is a leguminous, ("Leguminosae"), deciduous tree. "Laburnum alpinum" is similar to "Laburnum anagyroides", it grows to by , at a fast rate. It is hardy to zone 5. It is in flower from May to June, and the seeds ripen from September to October. The panicles of vanilla scented, pea-like flowers are hermaphrodite (having both male and female organs) and are pollinated by insects. The fruit is a pod or legume, the seeds green at first but becoming shiny black. The leaves are "cholagogue" and purgative. All parts