Mexican oregano: the aromatic herb of northern Mexico

What is it?

Mexican oregano (Lippia graveolens) is an aromatic herb endemic to northern and central Mexico, botanically distinct from European oregano (Origanum vulgare). It belongs to the Verbenaceae family and grows wild in semi-arid areas of Durango, Querétaro, Hidalgo, Jalisco, Guanajuato and Tamaulipas. Its leaves are larger, hairier and more aromatic than those of Mediterranean oregano, with an intense, citrus-menthol and slightly camphorous flavour. It is an essential ingredient of pozole, menudo, birria, charro beans, beef broths, marinades, salsas, escabeches and thousands of traditional Mexican preparations. National production is predominantly wild and manual, with harvesting by rural communities that have developed sustainable systems of use. Mexico is one of the world's leading producers and exporters of oregano, supplying markets such as the United States, Japan and Europe, where it is valued for its distinctive aromatic profile and antimicrobial properties.

Origin and history

Mexican oregano has been used in northern Mexico since pre-Hispanic times, according to ethnobotanical evidence published by CONABIO and INECOL. The Chichimec, Otomí and Pame cultures of the northern highlands used it as a seasoning and medicinal plant. After the conquest, its use was mixed with Mediterranean culinary traditions, being integrated into stews such as broths, beans, adobos and cured meats. Gob.mx, through the National Forestry Commission (CONAFOR), recognises its economic importance as a non-timber forest resource: it is harvested without destroying the plant, through manual pruning between July and November. The Mexican Official Norm NOM-007-RECNAT regulates its sustainable use. México Desconocido and Larousse Cocina agree in pointing to Durango (especially Las Quebradas and Santiago Papasquiaro) as the main national producer, with more than 50% of the total production. The herb flavours everything from Jalisco menudo to northern charro beans, forming an inseparable part of the culinary identity of northern Mexico.

Characteristic ingredients

Lippia graveolens is a perennial shrub of up to 2 m, with oval, hairy and aromatic leaves. Its white flowers are pollinated by bees, producing the well-known oregano honey. The essential oil contains carvacrol (40-70%), thymol and p-cymene, compounds with powerful antimicrobial properties, according to studies by CINVESTAV and the Autonomous University of Chihuahua. There are at least five chemotypes differentiated by their aromatic profile, depending on the production regions. Traditional harvesting involves cutting the upper part of the plant, drying it in the shade for several days and manually separating the leaves from the stems. Once dry it is sold in whole leaf (preferred for pozole, beans, menudo and birria), or ground (for adobos and cured meats). Yucatecan oregano (Lippia graveolens var. hairy oregano) is a regional variety. Mediterranean oregano is used less and less in Mexican cooking, as its profile is less intense and less citrus than the national variety, considered superior by most traditional cooks.

Cultural significance

Mexican oregano is an essential element of Traditional Mexican Cuisine inscribed by UNESCO as Intangible Cultural Heritage in 2010, present in emblematic dishes declared state heritage such as Jalisco pozole, birria, northern menudo, cochinita pibil and panuchos. Economically, according to SADER and CONAFOR, Mexico produces more than 4,000 tonnes annually, with a value of more than 200 million pesos. Rural semi-desert communities, especially in Durango, Hidalgo and Querétaro, depend economically on its sustainable harvest. The oregano fair in Cadereyta de Montes (Querétaro) celebrates its gastronomic and economic importance every autumn. Researchers at INIFAP, CINVESTAV and the Autonomous Agrarian University Antonio Narro are studying its potential as a natural antimicrobial in foods, replacing chemical preservatives. Mexican companies export premium Mexican oregano to Japan, Germany and the United States for gourmet uses, considering it a competitor to Greek oregano in savoury pâtisserie and ethnic cuisines.

Frequently asked questions

What is the difference between Mexican oregano and European oregano?

Mexican oregano (Lippia graveolens) is a Verbenaceae endemic to northern Mexico, with large, hairy leaves and an intense citrus-menthol aroma. European or Mediterranean oregano (Origanum vulgare) is a Lamiaceae with small, smooth leaves and a more floral and sweet profile. Although both contain carvacrol, their chemotypes and culinary uses are different and they are not interchangeable without noticing changes.

What does Mexican oregano taste like?

It has an intense, citrusy and slightly menthol flavour, with camphorous notes and a spicy aftertaste reminiscent of thyme and lemon. It is more penetrating and robust than European oregano, so it withstands long cooking in stews such as pozole, birria or menudo without losing its aromatic character. Rubbed in the hands it releases very powerful essential oils.

Which Mexican dishes use oregano?

It is essential in red and white pozole, northern menudo, Jalisco birria, charro beans, beef broths, sopa de tortilla, adobos for tacos al pastor, escabeches, cured meats such as longaniza and chorizo, marinades for barbacoa, and as part of the Yucatecan recado for cochinita pibil alongside achiote, allspice and cumin.

Where does Mexican oregano come from?

It is native and endemic to northern and central Mexico, with wild populations in Durango (main producer), Querétaro, Hidalgo, Jalisco, Guanajuato, Tamaulipas, San Luis Potosí and Coahuila. Its pre-Hispanic use is documented among the Chichimecs, Otomíes and Pames, and today it is one of the main non-timber forest products of the Mexican semi-desert.