Definition of "bindweed"

Any of several trailing vine-like plants in the family Convolvulaceae with funnel-shaped flowers:

1. The true bindweed (Convolvulus).  quotations  examples

   Quotations

   • the slender bindweed wound about with its pale and delicate flowers—so delicate, yet so deadly; and one or two late flowers yet put forth their wan blossoms, pining as if gentle exiles of the spring, and yet very, very lovely.

     1834, L[etitia] E[lizabeth] L[andon], Francesca Carrara. […], volume III, London: Richard Bentley, […], (successor to Henry Colburn), pages 79–80

2. The false bindweed (Calystegia).  examples

3. The slender bindweed (Polymeria calycina).  examples

Any of several plants of species in other families with similar appearance:

1. The black bindweed (Fallopia convolvulus).  examples

2. The bittersweet nightshade, blue bindweed (Solanum dulcamara).  examples