equisetum arvense

from WordNet (r) 3.0 (2006)

Equisetum arvense
    n 1: of Eurasia and Greenland and North America [syn: {common
         horsetail}, {field horsetail}, {Equisetum arvense}]

from The Collaborative International Dictionary of English v.0.48

Paddock \Pad"dock\, n. [OE. padde toad, frog + -ock; akin to D.
   pad, padde, toad, Icel. & Sw. padda, Dan. padde.] (Zool.)
   A toad or frog. --Wyclif. "Loathed paddocks." --Spenser
   [1913 Webster]

   {Paddock pipe} (Bot.), a hollow-stemmed plant of the genus
      {Equisetum}, especially {Equisetum limosum} and the
      fruiting stems of {Equisetum arvense}; -- called also
      {padow pipe} and {toad pipe}. See {Equisetum}.

   {Paddock stone}. See {Toadstone}.

   {Paddock stool} (Bot.),a toadstool.
      [1913 Webster]