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Photographer: Emmet J. Judziewicz
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Family Asteraceae
Carduus acanthoides L.
plumeless thistle, spiny plumeless thistle
Carduus: the classical Latin name for thistle
acanthoides: like the genus Acanthus
Invasive - Eradicate!
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| Status: | Introduced - naturalized; ecologically invasive |
| Plant: | erect, biennial, 1'-4' tall forb; stems tough, spiny-winged |
| Flower: | head 1/2"-1" wide with pink disk flowers, bracts (phyllaries) spiny; inflorescence an erect, usually a solitary head or in clusters at the ends of the branches and (if present) on a long, winged stalk; blooms July-Oct. |
| Fruit: | 4-angled, dry seed with a fluffy, but not feathery pappus |
| Leaf: | deeply lobed to pinnately-divided |
| Habitat: | disturbed sites, roadsides |
| (Glossary) |
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