Researched by the Center for Invasive Plant Management, this identification guide highlights over 80 invasive plants that can cause economic and ecological damage to crops, range, forests, and wild lands in the West. Most of these problematic plants are non-natives that now grow in locations beyond their known historic range and are obliterating native species. Once in a new area, these plants can establish and spread, free from their natural competitors. Laminated for durability, this lightweight, pocket-sized folding guide is an excellent source of portable information and ideal for field use by novices and experts alike. Made in the USA.