From Indipedia: India's Wikipedia at OSDD
Common name: Amaltas, Golden shower tree, Indian Laburnum • Hindi: अमलतास Amaltas • Manipuri: চহুঈ Chahui • Tamil: கொன்றை Konrai • Malayalam: Vishu konnai • Marathi: बहावा Bahava • Mizo: Ngaingaw • Bengali: সোনালী Sonali, Bandarlati, Amultas • Urdu: املتاس Amaltas
Botanical name: Cassia fistula
Family: Caesalpiniaceae (Gulmohar family)
This native of India, commonly known as Amaltaas, is one of the most beautiful of all tropical trees when it sheds its leaves and bursts into a mass of long, grape-bunches like yellow gold flowers. A tropical ornamental tree with a trunck consisting of hard reddish wood, growing up to 40 feet tall. The wood is hard and heavy; it is used for cabinet, inlay work, etc. It has showy racemes, up to 2" long, with bright, yellow, fragrant flowers. These flowers are attractive to bees and butterflies. The fruits are dark-brown cylindrical pods, also 2' long, which also hold the flattish, brown seeds (up to 100 in one pod) These seeds are in cells, each containing a single seed. A postal stamp was issued by the Indian Postal Department to commemorate this tree.
Medicinal uses: The sweet blackish pulp of the seedpod is used as a mild laxative.