1. This allusion comes from the Tang Dynasty poet Du Mu's "Farewell": "Pingping is more than thirteen years old, and the cardamom sprouts are in early February." It describes the girl like the cardamom sprouts that have just sprouted in early February, with buds in them. put. Since then, people began to use "cardamom" to describe thirteen-year-old girls.

2. "Pingping has been curling up for more than thirteen years, and the cardamom leaves are in early February. The spring breeze is ten miles away on Yangzhou Road, and it is better to roll up the bead curtain." This is the seven-character quatrain "Farewell" by Du Mu, a poet of the Tang Dynasty. It is said that the poet Du Mu accidentally met Zhang Haohao, a prostitute of about thirteen years old, in Yangzhou, and wrote this poem as a gift to her before leaving. The article describes this frail and beautiful woman, like a cardamom flower that has just sprouted in February, waiting to bloom.

3. According to the analysis of the historical background at that time, what the poet saw should be cardamom, a grass native to China, which is a traditional Chinese medicine. It is recorded in "Illustrations and Materia Medica": ""Illustrations" says: Cardamom is a grass. Cardamom also grows in the South China Sea, and is found in Lingnan today. "It blooms in the stems in February, with young leaves curled up, and is reddish at first, with dark red heads." p>

4. Cardamom in February is like a hibiscus flower, and its reddish appearance is like a girl's face. This metaphor is very beautiful, and later people began to use this expression to describe a thirteen-year-old girl. Moreover, the two petals of the cardamom flower are joined together and resemble concentric shapes. This shape is regarded as a symbol of love and is called a concentric stamen.