Quercus microphyllaQuercus microphylla is a Mexican species of oak in the beech family. It is widespread from Oaxaca as far north as Chihuahua, Coahuila, and Tamaulipas.DescriptionQuercus microphylla is a shrub rarely more than tall, forming dense mats several meters across. The leaves are tiny compared to most other species in the genus, usually less than long.