Uda-gami is a thick paper made of kozo in Yoshino, Yamato Province originally called kuzu-gami (Kuzu paper), and a merchant of paper of the Uda-gun district began to sell the paper made in the Kuzu-go area, Yoshino-gun district at the market in Osaka and a wholesale store specialized in Yoshino paper sold it all over Japan, and consequently, the name of Uda-gami became widespread.
宇陀紙は、大和の吉野の産の紙で、もともと国栖紙と呼ばれた楮（こうぞ）の厚紙で、吉野郡国栖郷で漉かれたものを、宇陀郡の紙商が大坂市場に売り出し、吉野紙専門の紙問屋があって全国に売り広められて、宇陀紙の名が広まった。