excellent, through descriptions of all the southwest's desert plants, including non-cactus sticky things. it'd benefit from color pictures (not cheap at the time of publishing) and maybe a bit more about the non-spiny desert plants, like the trees and shrubs. but, after all, that's what i want, not what the book was written for. the candor and colloquialism is charming, i suppose, but often it can grate on you. yes, reg, you don't like scientific latin names. got it. no need to belabor the point. also, the down-home phraseology gets to be a bit much. other than that though, this thing is great. despite its age, we used it to identify literally every kind of cactus we saw in the southwest. great illustrations too.