Buckthorn
Photo credit: Mary Crickmore, iNaturalist
Garden Valerian
Photo credit: pobrito, iNaturalist
USFS Garden Valerian Brochure
Garlic Mustard
Photo credit: Tom Lazar, iNaturalist
Honeysuckle
Photo credit: Séraphin Poudrier, iNaturalist
Japanese Barberry
Photo credit: Surly Aardvark, iNaturalist
Leafy Spurge
Photo credit: Tomas Pocius, iNaturalist
Mullein
Photo credit: Sheilasun, iNaturalist
Multiflora Rose
Photo credit: ctb, iNaturalist
Oriental Bittersweet
Photo credit: Ira Gershenhorn, iNaturalist
Phragmites
Photo credit: University of Illinois Extension
Poison Hemlock
Photo credit: k2018lena, iNaturalist
Purple Loosestrife
Photo credit: Ian Whyte, iNaturalist
Reed Canary Grass
Photo credit: Michael W. Belitz, iNaturalist
Spotted Knapweed
Photo credit: Andy Kleinhesselink, iNaturalist
Sweet Clover
Photo credit: Mary Crickmore, iNaturalist
Teasel
Photo credit: U of I Extension
Thistle
Photo credit: Craig Martin, iNaturalist
Wild Parsnip
Photo credit: Mary Crickmore, iNaturalist