Hedeoma patens

Hedeoma patens (Spanish common name, orégano chiquito, 'small oregano') is a small herb in the genus Hedeoma, family Lamiaceae. It is native to the Mexican states of Chihuahua and Coahuila. It is not very closely related to true oregano.

Uses
The plant is highly aromatic. It is used by natives of northwestern Mexico to flavor various food items, especially beans.