Cassia tubular (Latin: Cassia fistula) is a plant of the legume family (Fabáceae), a species of the genus Cassia that grows in southern Pakistan, India, Myanmar, Sri Lanka and other countries of South and Southeast Asia.

It is cultivated within its range, as well as in Africa, South America and the Antilles.

Cassia tubular – deciduous fast-growing tree 10 to 20 m high.

The leaves are regular paranoid compound 15 to 60 cm long, with 3-8 pairs of leaflets. Each leaflet is 7-21 cm long and 4 – 9 cm wide.

The flowers are collected in racemes 20-40 cm long. Each flower is 4-7 cm in diameter, with five identical yellow petals.

The fruit is brown-black, cylindrical, unopened bean with a fragile woody shell, 50 – 70 cm long and 2.5 – 3 cm in diameter. Inside the bean is divided by numerous transverse partitions into cameras. Each chamber contains one horizontally arranged shiny hard seed surrounded by dark sour-sweet flesh.

Chemical composition

The pulp contains 50-60% of sugars, mucus and about 1% of anthraglycosides.

Bean broth is used as a mild laxative, especially for children.

Cassia tubular is used in medicine in Western Europe and Asia. Included in Indian pharmacography.

Included in Livofer ultra.