Kalmar "Polypodiales" tana nufin tsari na ferns. Ferns rukuni ne na tsire-tsire waɗanda ke haifuwa ta hanyar spores kuma ba su da furanni ko iri. Polypodiales shine ɗayan manyan umarni na ferns, wanda ya ƙunshi kusan nau'ikan 80 da sama da nau'ikan 4,000. Ana samun su galibi a wurare daban-daban, daga dazuzzukan dazuzzukan na wurare masu zafi zuwa ciyayi masu zafi. Wasu misalan fern na yau da kullun a cikin tsarin Polypodiales sun haɗa da fern na Boston (Nephrolepis exaltata), fern gida na tsuntsu (Asplenium nidus), da maidenhair fern (Adiantum spp.).