Pennyroyal (Myata Bolotna)
Mentha pulegium
About Pennyroyal (Myata Bolotna)
Pennyroyal (Myata Bolotna) (Mentha pulegium) is a herb used in the Slavic & Eastern European Folk Medicine tradition to help with Digestive Issues, Headache, Menstrual Issues, and Fever, among 1 other condition it addresses. The aerial parts and leaves are the parts traditionally used, taken internally.
Botanical background
Mentha pulegium, commonly (European) pennyroyal, or pennyrile, also called squaw mint, mosquito plant and pudding grass, is a species of flowering plant in the mint family, Lamiaceae, native to Europe, North Africa, and the Middle East. Crushed pennyroyal leaves emit a very strong fragrance similar to spearmint. Pennyroyal is a traditional folk remedy, emmenagogue, abortifacient, and culinary herb, but is toxic to the liver and has caused some deaths. European pennyroyal is related to an American
Source: Wikipedia, via iNaturalist

