• (a.) Of, pertaining to, or resembling, the family of plants of which the bindweed and the morning-glory are common examples.
Con·vol`vu·la'ceous adjective [ From Convolvus .] (Botany) Of, pertaining to, or resembling, the family of plants of which the bindweed and the morning-glory are common examples. 
belonging to the Convolvulaceae, the morning glory family. Cf. morning glory family.