This spiral-bound pocket guide will help you identify the 35 noxious weeds and 5 regulated plants on the Montana noxious weed list. Clear color photos depict the plant in the field and written details of the plant help confirm weed identification. Montana’s Noxious Weeds also lists related factsheets for each species; these fact sheets provide additional information on biology and management. The 99-page booklet also includes contact information for Montana's county weed districts. Written by Monica Pokorny & Jane Mangold. Revised January 2020.