| Buccaferrea maritima (L.) Lunell | Synonym |  | WCSP | 
	
		| Ruppia andina Phil. | Synonym |  | WCSP | 
	
		| Ruppia brachypus J.Gay | Synonym |  | WCSP | 
	
		| Ruppia brevipes Bertol. ex Griseb. | Synonym |  | WCSP | 
	
		| Ruppia cirrhosa subsp. longipes (Hagstr.) Á.Löve | Synonym |  | WCSP | 
	
		| Ruppia curvicarpa A.Nelson | Synonym |  | WCSP | 
	
		| Ruppia intermedia C.G.H.Thed. | Synonym |  | WCSP | 
	
		| Ruppia marina Fr. | Synonym |  | TRO | 
	
		| Ruppia maritima f. aculeata Hagstr. | Synonym |  | WCSP | 
	
		| Ruppia maritima var. brachypus (J.Gay) K.Schum. | Synonym |  | WCSP | 
	
		| Ruppia maritima subsp. brachypus (J.Gay) Schlegel | Synonym |  | WCSP | 
	
		| Ruppia maritima subsp. brachypus Á. Löve | Synonym |  | TRO | 
	
		| Ruppia maritima var. brachypus (Gay.) Garcke | Synonym |  | TRO | 
	
		| Ruppia maritima subsp. brevirostris C.Agardh | Synonym |  | WCSP | 
	
		| Ruppia maritima var. brevirostris (C.Agardh) Asch. & Graebn. | Synonym |  | WCSP | 
	
		| Ruppia maritima var. brevirostris C. Agardh | Synonym |  | TRO | 
	
		| Ruppia maritima var. curvicarpa (A.Nelson) Fernald & Wiegand | Synonym |  | WCSP | 
	
		| Ruppia maritima f. curvirostris H.St.John & Fosberg | Synonym |  | WCSP | 
	
		| Ruppia maritima var. exigua Fernald & Wiegand | Synonym |  | WCSP | 
	
		| Ruppia maritima var. floridana Graebn. | Synonym |  | WCSP | 
	
		| Ruppia maritima subsp. intermedia (C.G.H.Thed.) Piper & Beattie | Synonym |  | WCSP | 
	
		| Ruppia maritima var. intermedia (C.G.H.Thed.) Asch. & Graebn. | Synonym |  | WCSP | 
	
		| Ruppia maritima var. japonica H.Hara | Synonym |  | WCSP | 
	
		| Ruppia maritima var. longipes Hagstr. | Synonym |  | WCSP | 
	
		| Ruppia maritima var. minor Mert. & W.D.J.Koch | Synonym |  | WCSP | 
	
		| Ruppia maritima var. obliqua (Griseb. & Schenk) Asch. & Graebn. | Synonym |  | WCSP | 
	
		| Ruppia maritima subsp. obliqua (Griseb. & Schenk) Á.Löve & D.Löve | Synonym |  | WCSP | 
	
		| Ruppia maritima var. onondagensis Fernald & Wiegand | Synonym |  | WCSP | 
	
		| Ruppia maritima var. pacifica H.St.John & Fosberg | Synonym |  | WCSP | 
	
		| Ruppia maritima f. pectinata Hagstr. | Synonym |  | WCSP | 
	
		| Ruppia maritima var. recta Moris | Synonym |  | WCSP | 
	
		| Ruppia maritima subsp. rostellata (W.D.J.Koch ex Rchb.) Asch. & Graebn. | Synonym |  | WCSP | 
	
		| Ruppia maritima var. rostellata Asch. & Graebn. | Synonym |  | TRO | 
	
		| Ruppia maritima subsp. rostellata Maire | Synonym |  | TRO | 
	
		| Ruppia maritima var. rostrata C.Agardh | Synonym |  | WCSP | 
	
		| Ruppia maritima subsp. rostrata (C.Agardh) Piper & Beattie | Synonym |  | WCSP | 
	
		| Ruppia maritima var. subcapitata Fernald & Wiegand | Synonym |  | WCSP | 
	
		| Ruppia obliqua Griseb. & Schenk | Synonym |  | WCSP | 
	
		| Ruppia pectinata Rydb. | Synonym |  | WCSP | 
	
		| Ruppia rostellata W.D.J.Koch ex Rchb. | Synonym |  | WCSP | 
	
		| Ruppia rostellata var. aragonensis (Loscos) Nyman | Synonym |  | WCSP | 
	
		| Ruppia rostellata subsp. aragonensis (Loscos) K.Richt. | Synonym |  | WCSP | 
	
		| Ruppia rostellata var. brachypus (J.Gay) T.Marsson | Synonym |  | WCSP | 
	
		| Ruppia rostellata var. brachypus Gay. | Synonym |  | TRO | 
	
		| Ruppia salina Schur | Synonym |  | WCSP | 
	
		| Ruppia spiralis subsp. longipes (Hagstr.) Á.Löve & D.Löve | Synonym |  | WCSP | 
	
		| Ruppia spiralis subsp. transsilvanica (Schur) Nyman | Synonym |  | WCSP | 
	
		| Ruppia subsessilis Thwaites | Synonym |  | WCSP | 
	
		| Ruppia taquetii H.Lév. | Synonym |  | WCSP | 
	
		| Ruppia transsilvanica Schur | Synonym |  | WCSP | 
	
		| Ruppia trichodes Durand | Synonym |  | WCSP | 
	
		| Ruppia zosteroides Lojac. | Synonym |  | WCSP | 
	
		| Zannichellia pedunculata Fuss [Illegitimate] | Synonym |  | WCSP |