Sweet corn belongs to the family

Sweet corn belongs to the family Poaceae.
Poaceae or Gramineae is a large ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns and pastures.
Corn, Zea mays, belongs to the Poaceae family, and while eaten sometimes as a vegetable and sometimes as a grain, it is classified by botanists as a fruit, as are tomatoes, green peppers, cucumbers, zucchini and other squashes.