texasnonnatives.org
Texas non-native and invasive plantsAbout 6000 species of vascular plants grow outside of cultivation in Texas. Of these, more than 800 (nearly 15%) are not native to the state. TexasNonNatives.org attempts to provide an account of all of the non-native species and for each an assessment of its degree of invasiveness in Texas and indication of the region(s) of Texas in which it occurs (regional data to be added soon). These data are organized in an Excel file that can searched in various ways. Texas non-native plant data. Andrew McDonald, ...
http://www.texasnonnatives.org/