List of trees of Texas

The following is a list of widely known trees and shrubs found in Texas.^[3][4][5] Taxonomic families for the following trees and shrubs are listed in alphabetical order by family.^[6]

Ecoregions are denoted by similar vegetation and environmental resources.^{[7][8][9][10][11]} Trees and shrubs are categorized into each of the ecoregions of Texas (equivalent to the EPA's Level 3 ecoregions).^[1][2] These categorizations can be generally accepted as a tree planting guide for each region.^[12] However, specific site conditions should be considered for any particular location.^[13] Likewise, consult the Texas Tree Planting Guide for recommendations.

Numerous non-native plants have been introduced to Texas in the United States and many of them have become invasive species.^{[14][15][16][17]} Plants that are considered invasive are denote with an (I).

Individual tree populations are experiencing severe decline, due to a loss in habitat and/or pests and disease.^[18] The conservation status for each known species is denoted in a separate column.