Source : Webster's Revised Unabridged Dictionary (1913)

Convolvulus \Con*vol"vu*lus\, n.; pl. L.{Convolvuli}, E.
   {Convoluluses}. [L., bindweed, fr. convolvere to roll around.
   So named from its twining stems.] (Bot.)
   A large genus of plants having monopetalous flowers,
   including the common bindweed ({C. arwensis}), and formerly
   the morning-glory, but this is now transferred to the genus
   {Ipom[ae]a}.

         The luster of the long convolvuluses That coiled around
         the stately stems.                       --Tennyson.