Ruppia polycarpa

Ruppia polycarpa is a submerged aquatic herb species in the genus Ruppia found in shallow brackish waters. It is a common submerged herb on Australasian coasts, including Australia (NSW; SA; Vic; WA) and New Zealand (type locality).^[3]

Ruppia polycarpa
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Alismatales
Family:	Ruppiaceae
Genus:	Ruppia
Species:	R. polycarpa
Binomial name
Ruppia polycarpa R.Mason[1][2]

Ruppia polycarpa

It was first described in 1967 by Ruth Mason from a specimen (CHR 150837B) found near the mouth of the Selwyn River, New Zealand, on the riverbed, on 27 February 1966 by J. Clarke.^[2]

It grows in "fresh to hypersaline coastal lakes, lagoons and estuaries".^[4]