411 REFERENCE · Wiktionary
Pteridopsida
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Translingual
Etymology
mul Pteris opsida
Proper noun
class division Pteridophyta the modern ferns
Hyponyms
class Schizaeales order, Cyatheales order, Salviniales order, Polypodiales order; Blechnales order, Davalliales order, Dicksoniales order, Marsileales order, Pteridales order - orders