Ruppia tuberosaRuppia tuberosa is a submerged herb in the genus Ruppia found in shallow hypersaline waters in Australia.Distribution and habitatThis is a common submerged herb in Australian coasts, including NSW, SA, Vic, and WA.DescriptionThis aquatic herb is one of the early diverged species in the genus.EcologyThe habitat is up to four times saltier than seawater.