Definition that contains lady fern
- genus athyrium temperate and tropical lady ferns; in some classifications placed in family Polypodiaceae or in the genus Asplenium
- alpine lady fern a lady fern with deeply cut leaf segments; found in the Rocky Mountains
- athyrium temperate and tropical lady ferns; in some classifications placed in family Polypodiaceae or in the genus Asplenium
- athyrium distentifolium a lady fern with deeply cut leaf segments; found in the Rocky Mountains