horned pondweed

2 definitions found

horned pondweed - Collaborative International Dictionary of English v.0.48 :

  Pondweed \Pond"weed`\, n. (Bot.)
     Any aquatic plant of the genus Potamogeton, of which many
     species are found in ponds or slow-moving rivers.
     [1913 Webster]
  
     Choke pondweed, an American water weed (Anarcharis  Canadensis
        , syn. Elodea Canadensis.) See Anacharis.
        
  
     Horned pondweed, the Zannichellia palustris, a slender,
        branching aquatic plant, having pointed nutlets.
        [1913 Webster]

horned pondweed - WordNet (r) 2.1 (2005) :

  horned pondweed
      n 1: found in still or slow-moving fresh or brackish water;
           useful to oxygenate cool water ponds and aquaria [syn:
           horned pondweed, Zannichellia palustris]