Common Ragweed—Ambrosia artemisiifolia
A native annual, ragweed is valuable to many kinds of wildlife, but it produces large amounts of pollen, causing hayfever in those with allergies. It can be found in fields, gardens, along roadsides and vacant lots.
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Identification and Control Information
- Common Ragweed Description and Interesting Information—Illinois Wildflowers
- The Organic Weed Management Website—Cornell University
[Photos, left to right: Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org; Richard Old, XID Services, Inc., Bugwood.org; Steve Dewey, Utah State University, Bugwood.org; Joseph M. DiTomaso, University of California - Davis, Bugwood.org]