xochinanacatl.

Headword: 
xochinanacatl.
Principal English Translation: 

a small black mushroom that provoked visions (see attestations) or made one drunk (see Molina)

Alonso de Molina: 

xochinanacatl. honguillos quehonguillos.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 160r. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

This is a compound made up of xochi- (flower) and nanacatl. The latter were small black mushrooms that were intoxicating and provoked visions.
Cecilio Agustín Robelo, Diccionario de Aztequismos: ó sea, Catálogo de las palabras del idioma náhuatl, azteca o mexicano (Imprenta del Autor, 1904), 619.

Attestations from sources in Spanish: 

Hongo que emborracha = xochinanacatl, tepexinanacatl. ixtlauacan nanacatl, magauacan nanacatl, teyuintinanacatl. Hongo de arbol = quauhnanacatl.
Alonso de Molina, 1571, Spanish to Nahuatl part, p. 72.