Polygonum heterophyllum <small>Sol. ex Meisn.</small> is a species of flowering plant in the family Polygonaceae, native to Uzbekistan, Turkmenistan and Tajikistan. It was first described by Daniel Solander in 1856.
(Polygonum heterophyllum <small>Lindm.</small> is a different species and is a synonym of Polygonum aviculare.)