Botanical name : Cassia fistula Linn.
Family : Caesalpiniaceae
SANSKRIT SYNONYMS
Aragvadha, Kritamala, Rajavriksha, Chaturangulam, Deerkhaphala
AYURVEDIC PROPERTIES
Rasa    : Tikta, Madhura
Guna   : Guru, Mrudu, Snigdha
Virya   : Seeta
PLANT NAME IN DIFFERENT LANGUAGES
English  : Indian laburnum, Purging fistula
Hindi  : Amaltas, Girimala
Malayalam : Konna, Kanikonna
Distribution – Throughout India in deciduous forests
PLANT DESCRIPTION
A medium sized deciduous tree grows up to 20 meters in height. Bark rough grayish; leaves pinnately compound, leaflets 4-8 pairs, ovate, acute, bright green above and silvery pubescent beneath; flowers bright yellow in lax pendulous recemes; fruits long cylindrical pods seeds broadly ovate, horizontally arranged in the sweetish pulp.  
MEDICINAL PROPERTIES
Plant pacifies vitiated pitta, vata, constipation, burning sensation, leucorrhea, skin disease, fever, cough, bronchitis, inflammations and rheumatism.
Useful part : Whole plant.