| dryopteridaceae | (n) alternative names for one of a number of families into which the family Polypodiaceae has been subdivided in some classification systems, Syn. Athyriaceae, family Dryopteridaceae, family Athyriaceae |
| dryopteris | (n) large widespread genus of medium-sized terrestrial ferns; in some classification systems placed in Polypodiaceae, Syn. genus Dryopteris |
| broad beech fern | (n) beech fern of North American woodlands having straw-colored stripes, Syn. Dryopteris hexagonoptera, Phegopteris hexagonoptera, Thelypteris hexagonoptera, southern beech fern |
| broad buckler-fern | (n) European shield fern, Syn. Dryopteris dilatata |
| fragrant cliff fern | (n) fern or northern Eurasia and North America having fragrant fronds, Syn. fragrant shield fern, Dryopteris fragrans, fragrant wood fern |
| goldie's fern | (n) North American fern with a blackish lustrous stipe, Syn. Dryopteris goldiana, Goldie's shield fern, goldie's wood fern |
| long beech fern | (n) beech fern of North America and Eurasia, Syn. Dryopteris phegopteris, Thelypteris phegopteris, northern beech fern, narrow beech fern, Phegopteris connectilis |
| male fern | (n) fern of North America and Europe whose rhizomes and stalks yield an oleoresin used to expel tapeworms, Syn. Dryopteris filix-mas |
| marginal wood fern | (n) North American fern with evergreen fronds, Syn. leatherleaf wood fern, evergreen wood fern, Dryopteris marginalis |
| marsh fern | (n) fern having pinnatifid fronds and growing in wet places; cosmopolitan in north temperate regions, Syn. Thelypteris palustris, Dryopteris thelypteris |
| mountain fern | (n) common European mountain fern having fragrant lemon or balsam scented fronds, Syn. Dryopteris oreopteris, Oreopteris limbosperma |
| mountain male fern | (n) a fern of the genus Dryopteris, Syn. Dryopteris oreades |
| new york fern | (n) slender shield fern of moist woods of eastern North America; sometimes placed in genus Dryopteris, Syn. Dryopteris noveboracensis, Parathelypteris novae-boracensis |
| oak fern | (n) bright blue-green fern widely distributed especially in damp acid woodlands of temperate northern hemisphere, Syn. Gymnocarpium dryopteris, Thelypteris dryopteris |
| snuffbox fern | (n) fern of northeastern North America, Syn. Dryopteris thelypteris pubescens, meadow fern, Thelypteris palustris pubescens |