Definition that contains genus thelypteris
- genus phegopteris beech ferns: genus is variously classified: considered alternative name for genus Dryopteris or included in genus Thelypteris
- phegopteris beech ferns: genus is variously classified: considered alternative name for genus Dryopteris or included in genus Thelypteris
- gymnocarpium oak ferns: in some classification systems included in genus Thelypteris
- thelypteris simulata delicate feathery shield fern of the eastern United States; sometimes placed in genus Thelypteris
- massachusetts fern delicate feathery shield fern of the eastern United States; sometimes placed in genus Thelypteris
- genus gymnocarpium oak ferns: in some classification systems included in genus Thelypteris
- parathelypteris simulata delicate feathery shield fern of the eastern United States; sometimes placed in genus Thelypteris