People who enjoy looking at and identifying outdoor plants in northeastern North America are often accustomed to putting aside this pursuit in the late fall and winter. Many plants, however, are still visible during these seasons and have features that make it possible to identify them at that time. This beautifully illustrated book is a unique guide that helps both amateur naturalists and serious field botanists identify nonwoody plants--herbaceous weeds and wildflowers--as they are found in winter in the northeastern United States and eastern Canada. The book features long entries on 391 species of herbaceous plants, each illustrated with a line drawing by Dick Rauh, together with briefer mentions of 191 similar species. The book also includes numerous charts illustrated by Rauh, an illustrated key, and an illustrated glossary. Photographs to help in identifying winter rosettes of some species are also provided.