Definitionen
1.NounAny of several species of aquatic plant, with very long and narrow leaves
Zostera spp. in marine environments
especially Zostera marina, growing abundantly in shallow bays along the coasts of the Northern Hemisphere.
Vallisneria spp. in freshwater environments.
2.NounZostera spp. in marine environments
especially Zostera marina, growing abundantly in shallow bays along the coasts of the Northern Hemisphere.
3.Nounespecially Zostera marina, growing abundantly in shallow bays along the coasts of the Northern Hemisphere.
4.NounVallisneria spp. in freshwater environments.