| McHenry County Conservation District / McHenry County College / RagweedGreat
Summer Wildflower - White & Green Gallery Information: MCCD #(815) 338-6223 |
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Common Name: |
Great Ragweed
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| Scientific Name: | Ambrosia trifida
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| Habitat/Season: | Successional Areas / June-October
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| Comment: | Native
Like its relative Common Ragweed, this species causes hay fever. Unlike Common Ragweed, however, it can grow up to 15 feet tall.
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