Kohler's Medizinal-Pflanzen in naturgetreuen Abbildungen mit kurz erlauterndem Texte :.Gera-Untermhaus :Fr. Eugen Kohler,[1883-1914].biodiversitylibrary.org/page/303638
Native to southern Mexico and Guatemala, but widely planted and naturalized as the source of nutritious Chia seeds. Photo from a dusty roadside in Costa Rica..
Found in the Andes of Colombia to Peru. One of plants known as Maestranto due to folk medicine use against blood pressure. UC Berkeley Botanical Gardens.