convolvulus

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 (Convolvulus arvensis), and formerly the morning-glory, but this is now transferred to the genus Ipomæa. [ 1913 Webster ]

The luster of the long convolvuluses
That coiled around the stately stems. Tennyson. [ 1913 Webster ]