 It contains the rare freshwater sponge "Radiospongilla sceptroides", and is notable for an absence of freshwater snails.The lakes contain the rare watershield ("Brasenia schreberi") and are lined with rare species such as the grey sedge ("Lepironia articulata") and the wooly frogsmouth lily ("Philydrum lanuginosum").The habitat provides a home for the otherwise scarce Australasian bittern ("Botaurus poiciloptilus"), and migratory Latham's snipe "Gallinago hardwickii".