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Weed (and Plant) Identification

General Weed Identification

Photo Gallery of Weeds, Weed Science Society of America

New Jersey Weed Gallery, Rutgers, The State University of New Jersey

Weeds of the North Central States, University of Illinois

Weed Identification, University of Illinois C-FAR

Weed Identification Guide, Virginia Tech

Weed Herbarium, University of Massachusetts

Weed Photo Gallery, Kansas Department of Agriculture

Weed Photo Gallery, University of California

Weed Identification Resources, Iowa State University

Turfgrass Weed Identification

Turf Weed Identification, Purdue University

Midwestern Turfgrass Weed Identification and Control, University of Illinois              (no longer online)

MSU Turf Weeds.net, Michigan State University

Turfgrass Weed Identification, University of Kentucky

North Central Weed Listing, WeedAlert.Com

Mushroom Identification

Puffballs, Purdue University

Wild Mushrooms, Ohio State University

Tom Volk's Fungi, University of Wisconsin-La Crosse

Mushroom Guide, Mendocino Coast Botanical Gardens, CA

Mushroom Toxicology, North American Mycological Association

Other Plant/Weed Identification Websites

Purdue Forage Plant Identification, Purdue University

Weed Science and Botany Slide Sets, Purdue University

USDA PLANTS Database, USDA

Plant Image Gallery, Noble Foundation

Noxious Weeds and Weed Laws

Noxious and Invasive Weeds and The Weed Laws in Indiana, Purdue University