Susana MuñozGuy J. CollinBernard GagnonJorge Soriano Ferrufino2026-03-222026-03-22199010.1080/10412905.1990.9697824https://doi.org/10.1080/10412905.1990.9697824https://andeanlibrary.org/handle/123456789/52083Citaciones: 14ABSTRACT The essential oils of two plants (Hedeoma mandoniana and Minthostachys andina) of the mint family from the high valleys and mountains of Bolivia have been analyzed by a combination of GC/MS and retention indices. Both oils were found to contain pulegone as the major compound. The physical and chemical properties of the oils are similar to those of the well-known American and European pennyroyal oils. KEY WORD INDEX: Labiatae Hedeoma mandoniana Minthostachys andina Essential oilsPulegoneenPulegoneEssential oilBotanyTraditional medicineBiologyarticle