A fleuron is a typographic element or glyph that can be used as a punctuation mark or an ornament for typographic compositions. The term “fleuron” comes from the Old French word for “flower” and refers to the stylized forms of flowers or leaves that these elements represent. Fleurons have a long history in typography and can be used in various ways, such as filling white space, dividing paragraphs, or adding decorative elements. They were traditionally crafted as individual metal sorts that could be combined with other typographic elements to create intricate designs. There are several different forms of fleurons that are supported in Unicode, including floral hearts and various types of leaves.
https://en.wikipedia.org/wiki/Fleuron_(typography)