pipewort

from WordNet (r) 3.0 (2006)
pipewort
    n 1: aquatic perennial of North America and Ireland and Hebrides
         having translucent green leaves in a basal spiral and dense
         buttonlike racemes of minute white flowers [syn:
         {pipewort}, {Eriocaulon aquaticum}]
    
from The Collaborative International Dictionary of English v.0.48
Pipewort \Pipe"wort`\, n. (Bot.)
   Any plant of a genus ({Eriocaulon}) of aquatic or marsh herbs
   with soft grass-like leaves.
   [1913 Webster]
    

[email protected]