"Dryopteridaceae" . . "Polystichum" . . "Polystichum kruckebergii W.H. Wagner" . "Pteridophyta" . . . . "Kruckeberg's Hollyfern" . . . . . "Plantae" . "W.H. Wagner" . . "Polypodiopsida" . . . . "Polystichum kruckebergii" . . . "Polypodiales" .