Definition of bindweed
noun
a twining plant with trumpet-shaped flowers. Several kinds are invasive weeds. - Genera Convolvulus and Calystegia, family Convolvulaceae: several species, including the widespread hedge bindweed (or wild morning glory) (Calystegia (or Convolvulus) sepium)
used in names of twining plants similar to bindweed, e.g., black bindweed.