Quercus microphylla

Quercus microphylla is a Mexican species of oak in the beech family. It is widespread from Oaxaca as far north as Chihuahua, Coahuila, and Tamaulipas.

Description
Quercus microphylla is a shrub rarely more than 60 cm tall, forming dense mats several meters across. The leaves are tiny compared to most other species in the genus, usually less than 35 mm long.