Genus Danaea, a fern genus consisting of only four species, has a few synonyms in the botanic nomenclature. The synonyms of Danaea are Chrysodium, Thyrsopteris, and Holophlebium. These synonyms were created due to some disputed differences in nomenclature and taxonomy. The plants belonging to the Genus Danaea are commonly known as ladder ferns and are mainly found in tropical regions of the world. These ferns are known for their attractive and delicate fronds, which are used for ornamental purposes. The synonymous names of Danaea might confuse the novice botanist, but they all refer to the same unique genus of ferns.