Wordnet 3.0
NOUN (1)
1. 
 any fern of the genus Doodia having pinnate fronds with sharply dentate pinnae; 
[syn: doodia, rasp fern]
WordNet (r) 3.0 (2006):
rasp fern
    n 1: any fern of the genus Doodia having pinnate fronds with
         sharply dentate pinnae [syn: doodia, rasp fern]