Chromolaena sagittata is a Mexican species of flowering shrub in the family Asteraceae. It is found in western Mexico, in the states of Sonora, Sinaloa, Nayarit, and Baja California Sur.Turner, B. L. 1997. The Comps of Mexico: A systematic account of the family Asteraceae, vol. 1 – Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272.
Chromolaena sagittata is an herb with opposite, arrow-shaped leaves about 2.5 cm (1 inch) long.Gray, Asa. 1852. Smithsonian Contributions to Knowledge 3(5): 88, in footnote parallel English and Latin, as Eupatorium sagittatum
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External links photo of herbarium specimen at Missouri Botanical, collected in 1848, type specimen of Chromolaena sagittata/Eupatorium sagittatum