New Stock Photos of Bull Thistle (Cirsium vulgare)

<p>Bull Thistle (Cirsium vulgare). A new collection of stock images from Ernie Hunter. A widespread biennial thistle introduced to North America from Europe and Asia. While it is intimidating in appearance it is not on the Noxious weeds list. It is easily controlled buy cutting and cultivation. Forming a Rosette the first year, as it produces a long tap root, the thistle can easily be killed by cutting or spraying. In the second year it grows a spined stem with many limbs also spined. I...