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Purple flowers with very prickly, gray-green leaves and stems, 3-5 feet tall
Left pane, the reddish bloom of the
Carduus pycnocephalus (common names include Italian
Black butterfly with yellow and blue markings.
Carduus nutans is usually a biennial, requiring 2 years to complete a ...
This thistle may exceed two meters in ...
This thistle may exceed two meters in ...