chipecua.

also known as the "firm herb," this was a medicinal plant from Tacambaro, Michoacan, that, when crushed and mixed with a beverage, was believed to be helpful for relieving gout and joint pain and restoring lost mobility

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.