Genus Athyrium refers to a group of ferns that belong to the family Athyriaceae. These ferns are commonly found in temperate regions of the world and are known for their unique fronds that are often triangular or lance-shaped. The genus Athyrium includes several species, and each one has its own set of characteristics that make it distinct from others. Some of the common synonyms of Genus Athyrium include lady fern, vandenboschia, Athyrium distentifolium, Athyrium filix-femina, and Athyrium niponicum, among others. These synonyms are used to refer to different species of the genus and are helpful in understanding the taxonomic hierarchy of the plant.