1, an idiom of Wei Zi, Yao Huang and China, with the pinyin of yáohua NGWèizǐ, which means two rare peony varieties in Luoyang in the Song Dynasty. Later it refers to expensive flowers.

2,: Chiba Huanghua Peony, from Yao; Weizi: Red Peony in Chiba is from Wei Renpu family.

3. From the poem "Drinking Alone in the Green Bamboo Hall" by Ouyang Xiu of Song Dynasty: "If you win the second place with Wei Zi, you will all die."