"Cystopteris Montana" shine sunan kimiyya ga nau'in fern wanda aka fi sani da fern mafitsara. Sunan jinsin "Cystopteris" ya samo asali ne daga kalmomin Helenanci "kystis," ma'anar mafitsara, da "pteron," ma'ana reshe, yana nufin siffar indusium, wanda ke rufewa da kare sporangia a gefen fronds. Sunan jinsin "montana" yana nufin "na tsaunuka," yana nuna cewa ana samun wannan fern a yankuna masu tsaunuka.