Does anyone have a good recommendation for a Texas Flora guide? I'm a Midwest transplant with biology major and have taken two botany courses. Am looking for a guide to use for Texas that is fairly simple to use but still scientific. I live in Corpus Christi but travel around the state birdwatching so would like something fairly diverse and easy to carry. Also have an iPhone so if anyone knows of any apps that would be fine too. Any suggestions would be greatly appreciated