Family Onagraceae is a group of flowering plants that is commonly known as the willowherb family. Other synonyms for this family include the evening primrose family and the suncup family. The family is made up of around 650 species of herbaceous plants, shrubs, and trees. The plants in this family are characterized by their four-lobed flowers, which are usually brightly colored and attract pollinators like moths and bees. Many species in this family have commercial value as ornamental plants, medicinal plants, or as a source of edible oil. The diversity of this family makes it an interesting subject of study for botanists and horticulturists alike.