Thunbergia is a genus of flowering plants that belong to the family Acanthaceae. Also known as the Black-eyed Susan vine or Clock-vine, Thunbergia is a popular choice for gardeners who seek to add a splash of color to their outdoor spaces. There are various synonyms for the word Thunbergia, such as Sky Vine, Brickellia, Red-Margarita, and Doll's Shoes. Each of these synonyms highlights specific qualities of the plant, such as its ability to climb up trellises or its bright red or yellow-colored flowers. Regardless of the synonym used, Thunbergia remains a beautiful and hardy plant that can add a touch of vibrancy and life to any garden.