Welted thistle

''Carduus acanthoides'' is a species of thistle known as the spiny plumeless thistle and welted thistle. This plant is native to Europe but is well-known in many other parts of the world, including parts of North and South America, New Zealand, and Australia, as a noxious weed. This thistle may exceed two meters in height and can form weedy monotypic stands. The stem and foliage are spiny and sometimes woolly. The plant starts from a flat basal rosette and then bolts an erect stem with occasional.. more