teixmincapatli.

an herbal medicine with long leaves, purple stems, and yellow seeds, used for treating the eyes and men's and women's genitals

The Mexican Treasury: The Writings of Dr. Francisco Hernández, ed. Simon Varey, transl. Rafael Chabrán, Cynthia L. Chamberlin, and Simon Varey (Stanford: Stanford University Press, 2000), 142.