Source : WordNet®

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