Epazote

Epazote is an annual or short-lived perennial herb in the family Amaranthaceae, which is native to Central America, South America, and southern Mexico.

Also known as: wormseed, Jesuit’s tea, Mexican-tea,[2] payqu (paico), epazote, mastruz, or herba sanctæ Mariæ.

Traditionally used in black beans and other foods for flavor and anti-flatulent properties.

https://www.sandiegoreader.com/news/2001/jun/14/tip-mexican-food-epazote/