With their graceful stance, brilliant colors, and intricate markings, members of the North American genus Calochortus are among the most dazzling bulbous plants in the world. Yet their mostly undeserved reputation for being difficult to grow has kept them from being known and appreciated by the vast majority of gardeners. By presenting detailed history, distribution, habitat, and observations on cultivation for each species, Mary Gerritsen and Ron Parsons aim to raise awareness of these gems of the American West and to bring them into wider horticultural use. The superb photographs, most taken in situ, vividly illustrate the remarkable variation within the genus and sometimes even within species.