Cassia alata L. 

Et thora
Vernacular Name: Sinhala: Peti thora; Eng: Ringworm shrub, winged senna, ringworm senna, candelabra bush, craw-craw plant.
Description: Small shrub, about 1 .Sm. high, with horizontal branches leaves paripinnate, alternate; leaflets 8-12 pairs, broadly rounded, oblique at the base. Twigs and petioles usually reddish-brown. Inflorescence in acillary and terminal erect spike; flowers yellow. Pod long, slightly compressed, with winged margin. Seeds numerous, black.
Propagation: By seeds.
Part Used: Leaves.
Chemical Constituents: The leaves contain anthraglucosides, chrysophanic acid and rhein.
Uses: The leaves and the stem have antiseptic and laxative properties. They are prescrived for constipation, oedema, hepatitis and icterus in a tea-like infusion. Dermatomycosis, tinea imbricata, ringworm, scabies and impetigo are treated externally by rubbing with pounded fresh leaves or by applying fresh leaf juice on the diseased parts.