turtle-grass
/ˈtɜːtlgrɑːs/noun
mass noun
1- a submerged marine flowering plant found in the Caribbean, with long grass-like leaves海龟草, 泰莱草。
1.1
- Thalassia testudinum, family Hydrocharitaceae.拉丁名Thalassia testudinum,水鳖科。