It forms a four to eighteen inch wide rosette in its first year and blooms in its second year. Bull thistle leaves are coarse on top and soft on the bottom. They are deeply lobed, each lobe has a ...

Canada thistle can be found in clay to gravelly soils. typically grows 3-5 feet tall stalk-less leaves around 6 inches long, wavy, lobed leaves with yellow spines at each lobe stem is spineless, ...