Pteretis
— Navneord
– Engelsk
～ small genus sometimes included in genus Onoclea; in some classifications both genera are placed in Polypodiaceae
pteridaceae
— Navneord
– Engelsk
～ one of a number of families into which the family Polypodiaceae has been subdivided in some classification systems; Pteridaceae is itself in turn sometimes further subdivided
Pteridium
— Navneord
– Engelsk
～ a genus of ferns belonging to the family Dennstaedtiaceae
Pteridium esculentum
— Navneord
– Engelsk
～ fern of southeastern Asia; not hardy in cold temperate regions
Pteridium aquilinum
— Navneord
– Engelsk
～ large coarse fern often several feet high; essentially weed ferns; cosmopolitan
pteridological
— Tillægsord
– Engelsk
～ of or relating to the study of ferns
pteridologist
— Navneord
– Engelsk
～ an expert in the study of ferns
pteridology
— Navneord
– Engelsk
～ the branch of botany that studies ferns
Pteridophyta
— Navneord
– Engelsk
～ containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta