Covering the almost three million acres of southernmost Texas known as the Lower Rio Grande Valley, this user-friendly guide is an essential reference for nature enthusiasts, farmers and ranchers, professional botanists, and anyone interested in the plant life of Texas. Alfred Richardson and Ken King offer abundant photographs and short descriptions of more than eight hundred species of ferns, algae, and woody and herbaceous plants--two-thirds of the species that occur in this region. Plants of Deep South Texas opens with a brief introduction to the region and an illustrated guide to leaf shapes and flower parts. The book's individual species accounts cover: Leaves; Flowers; Fruit; Blooming period; Distribution; Habits; Common and scientific names. In addition, the authors' comments include indispensible information that cannot be seen in a photograph, such as the etymology of the scientific name, the plant's use by caterpillars and its value from the human perspective. The authors also provide a glossary of terms, as well as an appendix of butterfly and moth species mentioned in the text.