紙莎草
Papyrus ( ) is a material similar to thick paper that was used in ancient times as a writing surface. It was made from the pith of the papyrus plant, "Cyperus papyrus", a wetland sedge. "Papyrus" (plural: "papyri") can also refer to a document written on sheets of such material, joined together side by side and rolled up into a scroll, an early form of a book.