The Texas Plant Information Database is a project created by the Texas Parks and Wildlife Department. It contains information on native plants that are useful for landscape planning, which includes ideas for small-scale to large-scale projects. It is possible to search by location, county, ecological region, common or scientific name.
The Flora of Texas Database is a project created by the Plant Resources Center of the University of Texas at Austin, one of the largest herbariums in the United States. This database includes data of vascular plants found in Texas. It is possible to search by phenology, month, location, species, genus and family.
Texas Natural Resource Server is a great resource with more than 10 different websites to visit to help with plant identification in Texas. It is a project of Texas A&M’s AgriLife Extension program that aims to educate residents of Texas on agriculture.
The Native Plants of Texas Search Engine gives information on the cultivation of native Texas plants and wildflowers—and is maintained by a group of gardeners certified by the Texas Parks and Wildlife Urban Program. It is possible to search by color, plant type, grouping and common or scientific name.
Another helpful project of the Plant Resources Center of the University of Texas at Austin is the Wildflowers of Texas identification resource. It is easy to use the database and possible to search by flowering month, region, color, common or scientific name.