1. Paeonia lactiflora is a perennial herb with a height of 40 ~ 70 cm, stout branches, dark brown color and no fluff on the surface. The leaves are narrowly oval, oval and lanceolate, with white serrated edges, sharp top, wedge-shaped bottom and petiole length of 1 ~ 2 cm.

2. The inflorescence is head-shaped, mainly growing at the top of branches and under the axilla of leaves, with a diameter of 8 ~ 1 1.5 cm. Petals are lanceolate and obovate-lanceolate, 3.5 ~ 6 cm long and 1.5 ~ 4.5 cm wide. Sepals are broadly oval, nearly round and white in color.