The Tamaulipan matorral is an ecoregion in the deserts and xeric shrublands biome on the eastern slopes of the Sierra Madre Oriental range in northeastern Mexico.

lindheimeri, Prosopis juliflora, P. laevigata, Yucca filifera, Salvia ballotiflora, Jatropha dioica, cenizo (Leucophyllum frutescens), Mammillaria heyderi hemisphaerica, tepeguaje (Leucaena pulverulenta) and Mimosa aculeaticarpa var.

Piedmont scrub is found in shallow soils derived from sedimentary rocks at the base of the Sierra Madre (below 2,000 m or 6,600 ft) and receives 450–900 mm (18–35 in) of annual rainfall.

Montane chaparral is a distinct plant community found above 1,700 m (5,600 ft) in the Sierra Madre Oriental, composed of oaks (Quercus spp.

[2] Mammals present in this ecoregion include the nine-banded armadillo (Dasypus novemcinctus mexicanus) Allen's squirrel (Sciurus alleni), collared peccary (Pecari tajacu) and coyote (Canis latrans).