Located in the Andes, above the last continuous forests and below the permanent snowline, and ranging from Costa Rica to Peru, páramos contain some of the earth‘s richest floral diversity. Beginning with a detailed introduction to the páramo ecosystem, this book provides an annotated checklist of the more than 3000 vascular plants and more than 1200 lichens, mosses, and hepatics found there; a gazetteer; and an extensive list of published literature on the páramo. This carefully crafted reference work is an indispensable source of information for botanists, conservation planners, geographers, park managers, and all those interested in Andean vegetation. Contributions were made by S. P. Churchill, M. R. Gavilanes A., S. R. Gradstein, D. Griffin III, and H. J. M. Sipman.