Iva annua

• From: USDA-NRCS PLANTS Database [1]
• Robert H. Mohlenbrock. USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln, NE. Courtesy of USDA NRCS Wetland Science Institute.
• Image without copyright, according to the above USDA page

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