Polygonum Convolvulus

from The Collaborative International Dictionary of English v.0.48

cornbind \corn"bind`\ (k[^o]rn"b[imac]nd`), n. (Bot.)
   A weed that binds stalks of corn, as {Convolvulus arvensis},
   {Polygonum Convolvulus}. [Prov. Eng.]
   [1913 Webster]