Chromolaena sagittata

Chromolaena sagittata is a Mexican species of flowering shrub in the sunflower family. It is found in western Mexico, in the states of Sonora, Sinaloa, Nayarit, and Baja California Sur.
"Chromolaena sagittata" is an herb with opposite, arrow-shaped leaves about 2.5 cm (1 inch) long.