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CommentsSpecies of Teasel have very unique flowerheads that are quite prickly because of the bractlets of the flowers. During the rosette stage, they resemble some Lactuca spp. (Wild Lettuce), but become quite different in appearance after the flowering stalks develop. Cut-Leaved Teasel is similar in appearance to Dipsacus sylvestris (Common Teasel), which also occurs in Illinois. This latter species usually has lavender flowers and its leaves are entire rather than pinnately lobed. The bracts at the base of its flowerheads curl upward, while the same bracts of Cut-Leaved Teasel are straight and spread outward.