Marsilea drummondii  

Marsilea Drummondii is an Australian native aquatic fern which is commonly known as Nardoo which is widespread throughout inland Western Australia. Marsilea Drummondii is an aquatic perennial rhizomatious fern with many highly polymorphic features (J. Robort, F. Maston, 2000). This fern grows from creeping rhizome which reproduce from sporocarps and can form highly dense swards following floods resulting in Marsilea Drummondii becoming rapidly dominant and being the main ground cover layer (J. Robert, F. Maston, 2000).