Found 2 items, similar to hair grass.
English → English (WordNet) Definition: hair grass hair grass n : fine-leaved aquatic spike rush; popular as aerator for aquariums [syn: needle spike rush, needle rush, slender spike rush , Eleocharis acicularis]
English → English (gcide) Definition: Hair grass Hair grass \Hair" grass`\ (gr[.a]s`). (Bot.) A grass with very slender leaves or branches; as the Agrostis scabra, and several species of Aira or Deschampsia. [1913 Webster]