Many gardeners know of Impatiens walleriana , the species that lies behind the myriad colorful garden varieties that brighten up containers, window boxes, and shady spots throughout the world. The genus Impatiens is enormous, comprising over a thousand species--many of which, although highly desirable, remain lilttle known to Western gardeners. Raymond Morgan first examines Impatiens through a botanical lens, describing their physiology, morphology,...