- E. Carmichael, C. Sayer, The Skeleton at the Feast: The Day of the Dead in Mexico, University of Texas Press, 1992
- J. G. R. Elferin, J. A. Flores Farfán, Yauhtli and Cempoalxochitl: The sacred marigolds. Tagetes species in Aztec medicine and religion, Centro de Investigaciones y Estudios Superiores en Antropologia Social (CIESAS)
See full list of Individual Species References.
Please also refer to the General Bibliography and Online Resources.