Tithonia rotundifolia ‘Torch’ (Mexican sunflower)

9/7/2010 · New England Botanic Garden at Tower Hill, Boylston, Massachusetts · ≈ 11 × 8″ (27 × 20 cm)

9/7/2010 · New England Botanic Garden at Tower Hill, Boylston, Massachusetts · ≈ 12 × 8″ (31 × 20 cm)

9/7/2010 · New England Botanic Garden at Tower Hill, Boylston, Massachusetts · ≈ 7 × 5″ (16 × 13 cm)

Kingdom	Plantae	Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin)
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Magnoliophyta	Flowering plants, also known as angiosperms
Class	Magnoliopsida	Dicotyledons—plants with two initial seed leaves
Subclass	Asteridae	A large class that encompasses asters
Order	Asterales	Flowering plants with a central disk flower and surrounding petals, like daisies
Family	Asteraceae	The aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers
Genus	Tithonia	From Tithon, husband of Aurora the goddess of dawn in Roman mythology
Species	rotundifolia	With rounded leaves