Weeds and Invasive Plants in Ventura County
(Click above to go to Weeds home page)
Italian
Thistle
Carduus pycnocephalus L.
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Mature
Plant | |
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Seedling |
Flowers
and Fruit |
Seedling and Flowers and Fruit photos courtesy of Bill B. Fischer, Farm Advisor Emeritus, University of California, Cooperative Extension.