1) Genus zostera 2) Liliopsid genus 3) Monocot genus 
Zostera is a small genus of widely distributed seagrass, commonly called marine eelgrass or (outside North America) simply eelgrass (not to be confused with the freshwater plant genus Vallisneria also called `eelgrass`). The genus Zostera contains 15 species. ==Ecology== Zostera marina is found on sandy substrates or in estuaries submerged or pa.....
• (n.) A genus of plants of the Naiadaceae, or Pondweed family. Zostera marina is commonly known as sea wrack, and eelgrass.
(from the article `boundary ecosystem`) Sea-grass beds are found just below low-tide mark in all latitudes. In north temperate waters Zostera is the most common genus, while in tropical ...
Zos'te·ra noun [ New Latin ] (Botany) A genus of plants of the Naiadaceæ , or Pondweed family. Zostera marina is commonly known as sea wrack , and eelgrass . 
[n] - (or in some classifications family Zosteraceae) small genus of widely distributed marine plants
genus Zostera noun (or in some classifications family Zosteraceae) small genus of widely distributed marine plants