Our favorite book on our locan grassland ecosystem:
 
Grassland Plant ID For Everyone
Except Folks That Take Boring Technical Stuff Too Seriously
By Jim Koweek
Photography By Dale Armstrong
 
A nontechnical field guide to around 300 species of grassland plants. Includes 60 grass species, trees and shrubs, cacti and succulents, and well over 100 forbs. There are also short sections on invasive plants, grassland plant propagation, and using native grassland plants in landscaping. This book contains over 400 high quality photographs and descriptions of each species. Plants are identified by easy to recognize characteristics not by detailed anatomical features or DNA analysis. Figuring out what you are looking at should be fun.