Definition: The term 'androecium' refers to a type of plant that features both male and female reproductive structures. It is typically found in plants of the family Apocynaceae, particularly species of the genus Apocynum. The male reproductive organs are typically located within the flower, while the female organs may be separate or located elsewhere on the plant. The presence of both male and female reproductive structures allows for a more flexible system of reproduction than is possible with just one type of reproductive structure.