This plant was very prickly and had very poky seeds or flowers. The plant was about two feet tall and had a yellowish brown hue. This was the only one visible on the hillside I found it on.
This plant was found under a shady oak tree. It has a thorny stem and flower. Tan, white, and purple flowers seem to appear on the same plant. This was one of the four plants found under the oak.
Carduus pycnocephalus, with common names including Italian thistle, Italian plumeless thistle, and Plymouth thistle, is a species of thistle. It is native to: the Mediterranean region in southern Europe, North Africa, and Western Asia; East Europe and the Caucasus; and the Indian Subcontinent.