xochinacaztli.

Headword: 
xochinacaztli.
Principal English Translation: 

ear-flower herb; an aromatic herb used with cacao
Beyond the Codices, eds. Arthur J.O. Anderson, Frances Berdan, and James Lockhart (Los Angeles: UCLA Latin American Center, 1976), 146.

Attestations from sources in English: 

For further discussion about this herb, see Francisco Hernández, Obras Completas, vols. II and III, Historia Natural de Nueva Espana (Mexico: Universidad Nacional de México, 1959), II, 67–68.