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Photographer: Kitty Kohout
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Family Asteraceae
Senecio vulgaris L.
common groundsel
Senecio: from senex, "old man," referring to the gray hairs on the seeds
vulgaris: Latin for "common"
Hazardous 
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| Status: | Introduced - naturalized |
| Plant: | erect, annual, 8"-20" tall forb with usually 1 stem |
| Flower: | head 1/4" - 1/3" wide, yellow disk flowers and no rays; inflorescence of 8-20 heads in a loose, branched cluster; blooms April-Dec. |
| Fruit: | dry seed on fluffy pappus |
| Leaf: | with coarse, irregular teeth and/or pinnately-divided |
| Habitat: | disturbed sites |
| (Glossary) |
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