Edible and Useful Plants of Texas and the Southwest by Delena Tull
I like this, because growing edible plants is really a good thing. The more you can use or eat the plants the better. Still, I am not inclined towards crafts much. It has recipes and instructions and also warnings on the plants that are toxic or give you rashes. I grow pokeweed for the wildlife...haven't yet used it as a dye or cooked it up yet. ButI want to grow Tomatillos and try the Enchilada Calabacitas recipe! Teas are my favorite thing...did you know that Yaupon Holly can be used for a tea?
Grasses of the Texas Hill Country by Brian and Shirley Loflin
Absolutely the hardest kind of plants to ID are the grasses. I'll have to admit I'm still kind of limited there. Even some on my own property I still haven't figured out. But some are pretty easy. It has both native and introduced grasses, with photos and info. Kind of disturbing how many kinds of nonnative grasses are growing in Texas.
Trees, Shrubs and Vines of the Texas Hill Country by Jan Wrede
I know this lady and this is a more extended version of her first book, which I believe was called Texans Love Their Land. Beautiful photos and really good info on Hill Counry plants. Includes some invasive exotics and offers native alternatives to them.