Synonyms: Acrorumohra obtusissima; Acrorumohra undulata; Arachniodes obtusissima; Arachniodes zeylanica; Aspidium macrochlamys; Aspidium obtusissimum; Aspidium undulatum; Dryopteris deparioides gracillima; Dryopteris gracillima; Dryopteris gracillima triangularis; Dryopteris gracillima var. prolongata; Dryopteris gracillima var. triangularis; Dryopteris obtusissima; Dryopteris simulans; Dryopteris sri-lankensis; Dryopteris undulata; Lastrea deltoidea; Lastrea filix-mas var. minor; Lastrea undulata; Nephrodium sparsum var. minus (homotypic); Nephrodium undulatum; Rumohra obtusissima; Rumohra zeylanica