Strychnos potatorum also known as clearing-nut tree (Telugu: à °Âà °¿à °²à ±Âà °²à °Âà °¿à °Âà °Â, Kannada: kataka/à ²Âà ²¤à ²Â, Tamil: à ®¤à ¯Âà ®¤à ¯Âà ®¤à ®¾à ®©à ¯ à ®Âà ¯Âà ®Âà ¯Âà ®Âà ¯Â(Thethankottai), Bengali: à ¦Âà ¦¤à ¦Âà ¦¾ Hindi: Nirmali Burmese: áÂÂáÂÂá±á«áÂÂáºá¸áÂÂá±áÂÂá¼áÂÂáº, Sinhala à ¶Âà ¶Âà ·Âà ¶±à ·Â) is a deciduous tree which has height up to . The seeds of the tree are commonly used in traditional medicine as well as for purifying water in India and Myanmar.