Purshia The Wild and Bitter Roses Author:James A. Young, Charlie D. Clements 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 comprehensiv... more »e examination of the biology of the Purshias and their significant role in the ecology of the Great Basin.« less