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9 native flowers often mistaken for weeds

By: Networx Systems on Sept. 6, 2011, 2 p.m.
purple flowers

Photo: Anita363/Flickr

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Vernonia noveboracensis: "Ironweed" grows to 4 to 7 feet tall and has purple flowers in late summer. It prefers a moist soil and full sun; attracts butterflies. Zone 5-8.