-Plants (Kingdom Plantae)

-Vascular Plants (Phylum Tracheophyta)

-Flowering Plants (Subphylum Angiospermae)

-Dicots (Class Magnoliopsida)

-Sunflowers, Bellflowers, Fanflowers, and Allies (Order Asterales)

-Sunflowers, Daisies, Asters, and Allies (Family Asteraceae)

-Subfamily Asteroideae

-Sunflowers and Allies (Tribe Heliantheae)

-Subtribe Helianthinae

-Mexican Sunflowers (Genus Tithonia)

-Mexican Sunflower (Tithonia rotundifolia)

Tithonia rotundifolia in the daisy family (Asteraceae) is a species of bushy annuals, perennials and shrubs native to Mexico and Central America that have large, brightly colored daisy-like flowers on thick stems. Mexican sunflower. T. rotundifolia, is a vigorous, drought tolerant warm season annual that is easy to grow in the ornamental garden with other common names of red sunflower of just tithonia.