131455 EQUAL-LEAVED KNOTGRASS Polygonum arenastrum (Polygonaceae) Prostrate. Mat-forming annual of bare ground and disturbed soil. Superficially similar to Knotgrass. FLOWERS are pale pink and arise in leaf axils (Jun-Oct). FRUITS are nut-like and are enclosed by the withering flower. LEAVES are oval and equal in size on main stem and side branches (cf. Knotgrass). STATUS-Widespread and common.