Butea Monosperma, also known as Butea frondosa is a species of medicinal plant belonging to the family Fabaceae is native to tropical South Asia, Pakistan, India, Bangladesh, Nepal, Sri Lanka, Burma, Thailand, Laos, Cambodia, Vietnam, Malaysia and western Indonesia.
It is a medium-sized deciduous tree that reaches 15 m in height. The leaves are pinnate, with a petiole of 8-16 cm and three leaflets, each 10-20 cm long. The flowers are 2.5 cm long, are orange-red in color, and are produced in clusters up to 15 cm long. The fruit is a pod of 15-20 cm long and 4-5 cm wide.
It is used for wood, resin, fodder, medicine and dye. The tree produces a gomoresin, called kamarkas in Hindi, it is used in certain dishes. Gum is also known as Bengal Kino, and is considered valuable by pharmacists, due to its astringent qualities, and its use to tan leather due to its tannin.2
In West Bengal it is associated with spring, especially through the poems and songs of Nobel Prize winner Rabindranath Tagore, who compared his bright orange flower with a flame of fire. In Santiniketan, where Tagore lived, this flower has become an indispensable part of the celebration of spring. The plant has given its name to the city of Palashi, famous because the historic Battle of Plassey was fought there.
Indications: it is used as an astringent. The seeds give an oil used as a vermifuge.