This publication is a basic guide to thirty-five common toxic plants found in southwestern Idaho pastures and rangelands. Concise plant descriptions, paired with stunning photography, will help you to identify any suspect plants on your property. Individual entries provide information about each plant's main characteristics, its poisonous parts, and the toxic dose. The most at-risk animal species and the typical symptoms of a stricken animal are also addressed. This handy primer is a must-have resource for Idaho ranchers and landowners in general, one to refer to multiple times to protect your family and your livestock.