any of a genus (Convolvulus) of trailing, twining, or erect plants of the morning-glory family, with funnel-shaped flowers and triangular leaves
See convolvulus in American Heritage Dictionary 4
(kən-vŏlˈvyə-ləs)
nounpl.con·vol·vu·lus·es or con·vol·vu·li(-līˌ)
Any of various mostly trailing or twining plants of the widespread genus Convolvulus, having funnel-shaped flowers and including several weeds and a few grown as ornamentals.