Ruppia maritima (Beaked Tasselweed) is a species of perennial herb in the family Ruppiaceae. It has a self-supporting growth form. It is associated with freshwater habitat. Beaked Tasselweed is native to U.S. Virgin Islands, Alaska, Puerto Rico, the contiguous United States, Hawaii, Canada, Saint-Pierre et Miquelon, North America, Pernambuco, Ceará, Espirito Santo, Piauí, Santa Catarina, São Paulo, Paraná, Rio Grande do Sul, Bahia, Alagoas, Pampa, Mata Atlântica, Rio de Janeiro, and Caatinga. It has simple, broad leaves and green flowers. Beaked Tasselweed form sea grass beds. It is a photoautotroph. Individuals can grow to 0.2 m.
EOL has data for 73 attributes, including: