1、 Leaf difference

The leaves of round leaf mallow are alternate, about 1 to 3 cm long and 1 to 4 cm wide. They are kidney shaped. The apex of the leaves is blunt and the base is heart-shaped. There are usually 5 to 7 shallow cracks. The edge of the lobes has fine round teeth and pilose hair on it

The leaves of wild sunflower are kidney shaped or round, with a diameter of 5 to 11 cm, usually palmately 5 to 7-lobed, triangular lobes, blunt tips and blunt teeth at the edge

2、 Flower difference

Round leaf Mallow flowers are clustered in 3 to 5 flowers at the top and solitary at the base. The Corolla is white or pink, with a diameter of about 1.5 cm. Each flower has 5 petals, which are inverted heart-shaped

The corolla of wild sunflower is light white or light red, has 5 petals, grows about 6 to 8 mm, and the apex is concave