Senna occidentalis (L.) Link
Family: Fabaceae
Taxonomy: Plantae > Tracheophyta > Equisetopsida > Fabales > Fabaceae > Senna > S. occidentalis
Common name [English]: Coffee-senna, Fetid senna
Vernacular name [Malayalam]: ഊളൻ തകര, പൊന്നാവീരം, സൂചിതകര
Nativity: Tropical South America, South East Asia
Habitat: Common in grassy localities, roadsides and wastelands.
Description: Erect subshrubs up to 2 m tall. Leaves up to 22 cm long; leaflets 4-5 pairs, 2.5-7 x 1.5-3.5 cm , ovate-lanceolate, base rounded, apex acute or acuminate, glabrous or pubescent; rachis to 18 cm long with a sessile, hemispherical gland at base; stipules 4-7 mm long, linear-lanceolate, acuminate, caducous. Flowers c. 2 cm across, in terminal and axillary racemes, to 3 cm long; pedicels 0.8-1.2 cm long; bracts linear-lanceolate. Sepals 6-10 mm long, ovate, obtuse, mucronate. Petals 5, yellow, 1-1.5 cm long, obovate. Stamens 10, unequal, only 7 fertile. Pods 5-9 x 0.6-0.8 cm, linear, compressed. Seeds 20-25, 4-5 x 3-4 mm, ovate or suborbicular, compressed, brown.
Flowering and Fruiting :July-December
Uses :Used for the treatment of epilepsy and jaundice.
Cultivation: wild
References
http://www.plantsoftheworldonline.org
https://indiabiodiversity.org