(This article is about the genus. For the most commonly cultivated species, see Syngonium podophyllum.) Syngonium /sɪŋˈɡoʊniəm/ is a genus of flowering plants in the family Araceae, native to tropical rain forests in southern Mexico, the West Indies, Central and South America. They are woody vines growing to heights of 10–20 m or more in trees. They have leaves that change shape according to the plant's stage of growth, and adult leaf forms are often much more lobed than the juvenile forms usually seen on small house plants.