This "花" character, from a calligraphy perspective, belongs to the "seal script" font.
Seal script can be divided into large seal script and small seal script. Dazhuan is a kind of writing written by King Xuan of Zhou Dynasty in the late Western Zhou Dynasty. It is also called Zhenwen. Its physical characteristics are generally consistent with bronze inscriptions and has the characteristics of numerous strokes.
? Xiaozhuan is a unified font promulgated by the Qin Dynasty when the policy of writing with the same text was implemented. It was revised by Li Si and others after sorting out the text. Because it is an officially issued unified font, it has been organized and simplified, so the number of variant characters has been greatly reduced, and the font shape is rectangular, laying the foundation for the "square shape" of Chinese characters.
The small seal strokes are more symmetrical and neat, the lines are consistent in thickness, more rounded, the symbolism is enhanced, and the pictorial meaning is greatly weakened. Because Xiaozhuan is simplified on the basis of Dazhuan, it is generally said that Xiaozhuan is the simplified version of Dazhuan.
The calligraphers famous for writing seal script in the past include: Li Si (Qin), Li Yangbing (Tang); those in the Qing Dynasty include Zhao Zhiqian, Deng Shiru, Wu Changshuo; Wang Fu'an (Republic of China)... (works are introduced online)
p>
Attached is Li Si's "Stone Carvings on Mount Yi" (detail):