canchalagua noun5 •Any of several plants of the Americas similar to centaury, and formerly used like it for medicinal purposes, among them. •Centaurium cachanlahuen, the original canchalagua •Centaurium chironioides, a Mexican species •Zeltnera venusta, a California species in the gentian family •Schkuhria pinnata, a plant in the sunflower family native to South America and used medicinally formscanchalaguas