tecpatli.

an herb whose juice "gets rid of harshness in the chest and is a singular remedy for palpitations and for blood in the bowels; and from this same root is made a very good lime for catching silly little birds"

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), 139.