1. horned pondweed: completely submerged herbs; in some classifications included in Potamogetonaceae; [syn: Zannichellia, genus Zannichellia]
WordNet (r) 3.0 (2006):
Zannichellia
n 1: horned pondweed: completely submerged herbs; in some
classifications included in Potamogetonaceae [syn:
Zannichellia, genus Zannichellia]