wrack grass

Webster's Dictionary (GCIDE)

Wrack \Wrack\, n. [OE. wrak wreck. See Wreck.] [1913 Webster]

1.Wreck; ruin; destruction. [Obs.] --Chaucer. "A world devote to universal wrack." --Milton. [1913 Webster] [1913 Webster]

2.Any marine vegetation cast up on the shore, especially plants of the genera Fucus, Laminaria, and Zostera, which are most abundant on northern shores. [1913 Webster]

3.(Bot.) Coarse seaweed of any kind. [1913 Webster]

Wrack grass, or Grass wrack (Bot.), eelgrass. [1913 Webster]