Botanical atlas

Epazote

Dysphania ambrosioides

Long before it scented kitchens across Mexico and Central America, epazote grew as a humble dooryard weed that Aztec and Maya households gathered for both the cook pot and the medicine chest. Its most beloved role has always been alongside black beans, where a single sprig cut through the meal's heaviness and was said to ease the gas that beans are famous for. Healers across Mesoamerica also turned to the leaf as a folk remedy for stomach complaints and, later, distilled its potent oil into a widely sold over-the-counter dewormer in the early twentieth century, a use since abandoned once its real dangers came to light. Today epazote survives mainly as a beloved culinary herb, its old medicinal reputation remembered but treated with far more caution.

Safety.

Culinary use of a fresh or dried sprig is safe, but the concentrated essential oil (oil of chenopodium) is genuinely toxic and has caused fatal poisonings, especially in children. Do not take the essential oil, seeds, or strong infusions, and avoid medicinal use entirely during pregnancy.