Calea ternifolia // Calea zacatechichi
is a species of flowering plant in the aster family, Asteraceae. It is native to Mexico and Central America. Its English language common names include bitter-grass, Mexican calea, and dream herb. Dream Herb (Calea zacatechichi) is also known as Calea Ternifolia, or leaf of God. Dream Herb has been used by the indigenous people of Mexico, including the Chontal, for thousands of years. They believed the herb would clear their senses and put them in touch with God.
In Mexico the plant is used as an herbal remedy. The Zoque Popoluca people call the plant tam huñi (“bitter gum”).
Zacatechichi, the former species name, is a Nahuatl word meaning “bitter grass”. While quite bitter if brewed in hot water, the bitterness can be considerably masked by brewing with Osmanthus flowers, which have a compatible scent profile. Chemical compounds isolated from this species include flavones such as acacetin and sesquiterpene lactones such as germacranolides.