American Horticultural Society Book Award Winner: “An essential reference for all who wish to understand the science of the all-powerful weed.” —Better Homes and Gardens “What is a weed,” opined Emerson, “but a plant whose virtues have not yet been discovered?” While that may be a worthy notion in theory, these plants of undiscovered virtue cause endless hours of toil for backyard gardeners. Wherever they take root, weeds compete for resources, and most often win. They also wreak havoc on industry—from agriculture to golf courses to civic landscape projects, vast amounts of money are spent to eradicate these virile and versatile invaders. With so much at stake, reliable information on weeds and their characteristics is crucial. Richard Dickinson and France Royer shed light on this complex world with Weeds of North America. Organized by plant family, this encyclopedic volume features over five hundred species in two-page spreads with images and text identification keys. Species are arranged within family alphabetically by scientific name, and entries include vital information on seed viability and germination requirements. No matter what your philosophy on weeds, this guide provides much-needed background on these intrusive organisms. In the battle with weeds, knowledge truly is power, and Weeds of North America is perfect for gardeners, botanists, nature lovers, or anyone working in the business of weed ecology and control. “Royer’s photographs are almost perversely alluring. . . . How can you not be ensnared by a book populated by prostrate pigweed, tansy ragwort and dog-strangling vine?” —New York Times Book Review

Here, at last, is a lavishly illustrated manual for ready identification of 299 common and economically important weeds in the region south to Virginia, north to Maine and southern Canada, and west to Wisconsin. Based on vegetative rather than floral characteristics, this practical guide gives anyone who works with plants the ability to identify weeds before they flower. - A dichotomous key to all the species described in the book is designed to narrow the choices to a few possible species. Identification can then be confirmed by reading the descriptions of the species and comparing a specimen with the drawings and photographs.- A fold-out grass identification table provides diagnostic information for weedy grasses in an easy-to-use tabular key.- Specimens with unusual vegetative characteristics, such as thorns, square stems, whorled leaves, or milky sap, can be rapidly identified using the shortcut identification table. The first comprehensive weed identification manual available for the Northeast, this book will facilitate appropriate weed management strategy in any horticultural or agronomic cropping system and will also serve home gardeners and landscape managers, as well as pest management specialists and allergists.

"Featuring more than fifteen hundred full-color photographs, this handy guide provides essential information on four hundred of the most troublesome weedy and invasive plants found in the southern United States"--P. [2] of cover.

A guide to plant life in open dryland habitats. Fascinating fact and folklore. Detailed, beautiful drawings.

This book might be called a Who's Who among Weeds as it covers 102 of the most common weeds found throughout the United States. Weeds of lawn and yard, weeds that are sometimes used for food, weeds that are the bane of hayfever sufferers, weeds that can ruin cow's milk, poisonous weeds, and even the real desperadoes that can totally overtake a field in one season are all covered. The author, Edwin R. Spencer, was a farmer and biology professor; his text is both a practical and an authoritative guide to weeds, able to speak to nature lovers, farmers, and scientists alike. Pigweed … Dogbane … Carpet Weed … Crab Grass … Wild Garlic … Spiderwort … Chicory … Ragweed … Poison Ivy … Yellow Dock … each weed is listed under its most common name, but since one man's Moneywort is another man's Creeping Jenny, its scientific and alternative common names are also given. Then follows a delightful description of each weed, full of information and good humor as well. Details for controlling the weed are given in this section. To aid in identification each weed is multiply keyed at the front of the text as to its place and season of growth, the type of soil it prefers, and physical characteristics. Even if you know nothing about botany, you will most likely be able to identify your find through these keys or just by flipping through the 102 first-rate illustrations. To the gardener and farmer weeds are something to be hoed out and plowed under, but weeds are also a fascinating group of plants, as this thoroughly readable book will point out. They are the plants you are most likely to come upon in nature jaunts and the ones you are going to have to come to terms with if you do any gardening of your own. "A most fascinating book." — Garden Club of America.

This guide highlights widespread plants that can cause economic and ecological damage to crops, ranges, forests, and wild lands. Many of these problematic plants are non-natives that now grow in locations beyond their known historic range and are obliterating native species. Invasive Weeds of North America is a pocket-sized reference guide to identifying invasive and noxious flowers, shrubs, vines and trees and lets you know what you can do to help prevent them from spreading. This guide is an excellent source of portable information and ideal for field use by novices and experts alike.

Identifies two hundred of the most common invasive plants, including bog plants, herbaceous perennials, and shrubs, and offers guidance on selecting the safest and most responsible eradication options.