Golden shower is a fast-growing tree of medium size, typically 20-40 feet tall, with an irregular, vase- or oval-shaped crown, which is moderately dense. The branches are well-spaced and slightly drooping. The bark is grey, mottled and moderately rough and may have thorns. Leaves are bright green, 12-18 inches long, alternate, pinnate, with 4-8 pairs of ovate, opposite leaflets each 3-6 inches long; the tree is briefly deciduous. In full bloom, the tree is festooned with chains of golden yellow flowers, 8-18 inches in length, blooms with 5 petals each about 2 inches wide. Flowers are followed by dark brown, cylindricaa seedpods, 1 inch thick and up to 2 feet long, which persist on the tree through the winter. Pods have a pungent odor and contain several poisonous seeds, which are used for propagation. The tree has strong, durable wood. Golden shower grows well on a range of soil types providing they are well drained; it has no major pest or disease problems. It should be pruned to control the crown shape, especially when young. In landscaping, this is a showy specimen tree and is an excellent choice for gardens, for shade and as a street tree. Golden shower is the national tree of thailand.