What does it mean to count flowers in four rounds?

Four-wheel No.3 flower is a common folk art form, which originated in China, Jiangsu and northern Jiangsu. It is an ornament or handicraft, which consists of four petals, and each petal is embroidered with three flowers. Petals are generally made of cloth and can be embroidered with various patterns or flowers. Four petals are sewn together with thin threads. Four-wheel No.3 flower is usually used to decorate clothes, hats or other items, which has strong folk characteristics in Jiangsu and is also one of the representatives of traditional handicrafts in Jiangsu.