Betula papyrifera wani nau'in bishiya ne wanda aka fi sani da birch birch. Yana cikin dangin Betulaceae kuma asalinsa ne a Arewacin Amurka. Ita bishiyar tana da farin bawon ɓawon ɓawon ɓawon ɓaure, yana ba ta kamannin takarda. "Betula" shine sunan Latin don Birch, kuma "papyrifera" ya fito ne daga kalmomin Helenanci "papyrus" (ma'anar takarda) da "fero" (ma'anar bear), yana nufin bawon itacen kamar takarda.