This important work brings the knowledge of the vascular plants of the Yukon Territory up to date. Geology and vegetation are the focus of this well illustrated flora, which contains treatments of 1119 species, representing 80 families. All species are illustrated and dot maps depict known distribution within the Yukon Territory. It will be invaluable not only to botanical scientists, students, and travelers, but also to those concerned with biodiversity, rare and endangered species, resource management, wildlife management, and environmental planning.