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Photographer: Emmet J. Judziewicz
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Family Asteraceae
Cirsium muticum Michx.
swamp thistle
Cirsium: derived from the Greek kirsion, "a kind of thistle;" also cirsos meaning "a swollen vein" for which thistle was once a remedy
muticum: blunt, without a point
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| Status: | Native |
| Plant: | erect, biennial, 2'-7' tall, coarse forb with many branches; stems smooth and not winged; several stout roots |
| Flower: | head 1 1/2" wide with purple to pink disk flowers, bract (phyllaries) tips white-wooly but not spiny; inflorescence a cluster with many heads; blooms July-Oct. |
| Fruit: | dry seed on fluffy, feathery-divided pappus |
| Leaf: | deeply pinnately-divided with lance-like to oblong segments, softly spiny |
| Habitat: | wet; woods, meadows, streambanks, swamps |
| (Glossary) |
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