Ironweed: References & Edit History

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  • The Editors of Encyclopaedia Britannica
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Article History

Type Description Contributor Date
Article title updated for style. Nov 14, 2026
Added information on some of the major species. Sep 30, 2022
Invalidated site: How Stuff Works - Science - Ironweed. Apr 28, 2017
Add new Web site: Zipcode Zoo - Vernonia. Mar 09, 2012
Add new Web site: How Stuff Works - Science - Ironweed. Mar 09, 2012
Media added. Aug 28, 2008
Article added to new online database. Jul 20, 1998
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