1. シダ:ある区分においていくつかの科に分類される大きな科(チャセンシダ科、シシガシラ科、シノブ科、コバノイシカグマ科、オシダ科、ツルシダ科とイノモトソウ科を含む)(ferns: a large family that in some classification systems has been subdivided into several families (including Aspleniaceae and Blechnaceae and Davalliaceae and Dennstaedtiaceae and Dryopteridaceae and Oleandraceae and Pteridaceae))