I am not sure what this is, but it was decorating an ancient super boring poem about horses. I am trying to reincarnate it here to be used in more colorful and useful ways. But what ways will it be used? I suppose a horizontal divider of some sort is the most logical use for this.
華麗的分隔線
decoration、divider、Flourish/Divider/Header、ornate、Zierleiste
裝飾、分頻器、蓬勃發展/除法器/報頭、華麗的、造型
資料來源：openclipart ( https://openclipart.org/ )