Literature Reference: Sorrowful as we part by the river and sea, who will cherish the fragrance of Du Heng? Source from 'Song Chu Shi Yi Zao Zhi Di Gui Wu Jin Sheng'.
杜: Du Kang, Du Fu. The character "Du" refers to the sweet pear tree, as stated in the "Shuowen Jiezi" dictionary: "The male is called 'Tang', and the female is called 'Du'."
蘅:
Hengwu, Fragrant Herbs
Meaning: Du Heng, a fragrant herb, symbolizes nobility and fragrance, representing a person of high moral character and outstanding talent.