Nyctaginaceae is a family of flowering plants commonly known as the four o'clock family. This family includes about 30 genera and over 300 species, primarily found in tropical and subtropical regions. Members of this family are known for their colorful, funnel-shaped flowers that often bloom in the late afternoon, hence the name "four o'clock." Plants in the Nyctaginaceae family can be herbaceous or woody and often have fleshy fruits. Some well-known genera include Mirabilis, which features the popular Mirabilis jalapa or "four o'clock flower," and Bougainvillea, known for its vibrant bracts. These plants are often used in ornamental gardening due to their striking appearance.