fern genus - genera of ferns and fern allies

Dennstaedtiaceae, family Dennstaedtiaceae - one of a number of families into which Polypodiaceae has been subdivided in some classification systems

pasture brake, Pteridium aquilinum, bracken, brake - large coarse fern often several feet high; essentially weed ferns; cosmopolitan

bracken, Pteridium esculentum - fern of southeastern Asia; not hardy in cold temperate regions