Among the plant species of the Great Basin rangeland, the Purshia - ancient members of the rose family evolved to survive the aridity and temperature extremes of this harsh region - are one of the most important. In this first book-length study of this key plant species, range scientists James A. Young and Charlie D. Clements offer a comprehensive examination of the biology of the Purshias and their significant role in the ecology of the Great Basin. The authors' discussion is both thorough and broad in scope. They cover the evolution and probable origins of the Purshias (antelope...

This is a scientific and historical account of the cheatgrass invasion. It is a study of the plant which has changed the ecology of millions of acres of western rangeland.