Family Apocynaceae is a diverse family of flowering plants that has a crucial role in the ecosystem. This family is characterized by its unique features such as waxy leaves, milky sap, and fragrant blossoms. There are several synonyms for the word "Family Apocynaceae" including Dogbane family, Periwinkle family, Oleander family, and Milkweed family. These synonyms are adopted based on the plants' features, geographical location, and common usage. The Dogbane family is so-called as plants of this family are found toxic to dogs while the Periwinkle family is named due to the beautiful blue and purple flowers. The Oleander family is named after the ornamental plant oleander, and the name of the Milkweed family is derived from the milky sap present in many plants of this family.