Mexican oregano: what it is, taste and uses

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 family Verbenaceae and grows wild in semi-arid areas of Durango, Querétaro, Hidalgo, Jalisco, Guanajuato and Tamaulipas. Its leaves are larger, downier 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, pickles and thousands of traditional Mexican preparations. National production is predominantly wild and by hand, harvested by rural communities that have developed sustainable harvesting systems. 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 for its antimicrobial properties.

Origin and history

Mexican oregano has been used in northern Mexico since the pre-Hispanic period, according to ethnobotanical evidence published by CONABIO and INECOL. The Chichimec, Otomí and Pame cultures of the northern highlands used it as a condiment and medicinal plant. After the Conquest, its use mingled with Mediterranean culinary traditions, becoming part of dishes such as broths, beans, marinades and cured meats. The Mexican government, through the National Forestry Commission (CONAFOR), recognises its economic importance as a non-timber forest resource: it is harvested without destroying the plant, by manual pruning between July and November. The Official Mexican Standard 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 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 up to 2 m tall, with oval, downy 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, according to 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 dried it is sold as whole leaf (preferred in pozole, beans, menudo and birria), or ground (for marinades and cured meats). Yucatecan oregano (Lippia graveolens var. 'orégano peludo') is a regional variety. Mediterranean oregano is used less and less in Mexican cooking, since its profile is less intense and less citrusy 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 a year, worth more than 200 million pesos. The rural communities of the semi-desert, 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 each autumn. Researchers from INIFAP, CINVESTAV and the Antonio Narro Autonomous Agrarian University study its potential as a natural antimicrobial in food, replacing chemical preservatives. Mexican companies export premium Mexican oregano to Japan, Germany and the United States for the gourmet sector, considering it a competitor of Greek oregano in savoury baking and ethnic cuisines.

Frequently asked questions

What is the difference between Mexican oregano and European oregano?

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

What does Mexican oregano taste like?

It has an intense, citrus and slightly menthol flavour, with camphorous notes and a pungent 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 between the hands it releases very powerful essential oils.

In which Mexican dishes is oregano used?

It is essential in red and white pozole, northern menudo, Jalisco birria, charro beans, beef broths, tortilla soup, marinades for tacos al pastor, pickles, 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 to and endemic to northern and central Mexico, with wild populations in Durango (the main producer), Querétaro, Hidalgo, Jalisco, Guanajuato, Tamaulipas, San Luis Potosí and Coahuila. Its pre-Hispanic use is documented among the Chichimec, Otomí and Pame, and today it is one of the main non-timber forest products of the Mexican semi-desert.