Dryopteris dilatata wani nau'in fern ne wanda aka fi sani da "farin buckler fern". Nasa ne na dangin Dryopteridaceae kuma asalinsa ne a Turai, Asiya, da Arewacin Amurka. Sunan "Dryopteris" ya fito ne daga kalmomin Helenanci "dryos" ma'ana "itace" da "pteris" ma'ana "fern," wanda ke nufin dabi'ar bishiya na wasu nau'in jinsin. "Dilatata" yana nufin fronds na shuka, waɗanda suke da fadi da fili, tare da kamanni. Gabaɗaya, Dryopteris dilatata sanannen fern ne na ado wanda galibi ana shuka shi a cikin lambuna kuma ana amfani dashi a cikin shimfidar wuri.