Polygala irregularis is a species of flowering plant in the family Polygalaceae. It is a perennial herb with a height up to 60 centimetres (24 in), though the average ranges from 17 to 34 centimetres (6.7 to 13.4 in). It produces lilac to reddish-brown flowers. It is native to grasslands and sandy areas of Northern Africa, the Middle East, and South Asia with altitudes below 500 metres (1,600 ft).

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