Mafitsara fern wani nau'in shuka ne na fern wanda ke cikin jinsin Cystopteris. Sunan "mafitsara" ya fito ne daga buhunan da aka kumbura, da ake kira mafitsara, waɗanda ke tasowa a ƙasan fronds. Wadannan mafitsara sun ƙunshi spores da ke taimakawa wajen haifuwa na fern. Furen mafitsara yawanci ana samun su a yankuna masu zafi na duniya kuma ana siffanta su da m, lacy fronds da ƙananan girmansu.