Marsilea drummondii

The water clover Marsilea drummondii is widely spread in the Australian inland. There it occurs - amongst others - in wet depressions and on waterholes. When the water rises it develops floating leaves.
In trade, you often see the names M. crenata, M. hirsuta, M. exarata, M. drummondii and M. quadrifolia, however, it is not sure whether the respective plant was identified correctly. Most species of the genus Marsilea can only safely be identified in their emersed form by means of their sporocarps (spore-containing fruit).
Please see Marsilea spp.