Gamopetalous is a term used in botany to describe a flower that has fused petals. Some synonyms for gamopetalous includes, sympetalous, monopetalous, tubular, and funnel-shaped. Sympetalous flowers refer to petals that have grown together to form a single structure. Monopetalous flowers have one large petal rather than several smaller ones. Tubular flowers refer to a long, narrow petal that resembles a tube. Funnel-shaped flowers have a wide opening at the top and a narrow, tube-like base. These synonyms help to describe the unique features of gamopetalous flowers, which are often found in many different types of plants and flowers.