Marsilea Drummondii

from WordNet (r) 3.0 (2006)

Marsilea drummondii
    n 1: Australian clover fern [syn: {nardoo}, {nardo}, {common
         nardoo}, {Marsilea drummondii}]

from The Collaborative International Dictionary of English v.0.48

Nardoo \Nar*doo"\ (n[aum]r*d[=oo]"), n. (Bot.)
   An Australian name for {Marsilea Drummondii}, a four-leaved
   cryptogamous plant, sometimes used for food.
   [1913 Webster]