WordNet (r) 3.0 (2006):

king fern
    n 1: fern of rain forests of tropical Australia and New Zealand
         and South Africa [syn: crepe fern, king fern, Todea
         barbara]
    2: large deeply rooted fern of worldwide distribution with
       upright bipinnate compound tufted fronds [syn: royal fern,
       royal osmund, king fern, ditch fern, French bracken,
       Osmunda regalis]