Stamens are 1 ~ 1.7 cm long, filaments are purplish red and pink, the upper part is white, about 1.3 cm long, anthers are oblong and 4 mm long, and the disk is leathery, cup-shaped, purplish red, with several sharp teeth or lobes at the top, completely surrounding carpels, and carpels crack when mature. Kelp is rectangular with dense yellow-brown bristles. It blooms in May and bears fruit in June.
Peony is a unique flower in China. It has thousands of years of natural growth and more than two thousand years of artificial cultivation history. Its flowers are large, beautiful, colorful and fragrant, which have been praised by people of all ages and have high ornamental and medicinal value. Since the Qin and Han Dynasties, medicinal plants have been listed in Shennong Materia Medica, and there are many articles scattered in various ancient books.
Peony culture is compatible with many sciences and has a very wide composition, including philosophy, religion, literature, art, education, customs, people's feelings and other cultural fields.