MSU Weed Science - Department of Crop and Soil Sciences
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Thursday, July 24, 2008

Michigan's Worst Weeds

Summer Annuals

Common lambsquartersCommon lambsquarters common ragweedCommon ragweed

Giant foxtailGiant foxtail Giant ragweedGiant ragweed

PigweedRedroot pigweed, smooth pigweed SmartweedSmartweeds (Pennsylvania smartweed and ladysthumb)

velvetleaf Velvetleaf             Eastern black nightshade


Winter Annuals

Perennials

Biennials