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This plant has the advantage of flowering somewhat earlier during the summer than many other prairie wildflowers. It is more impressive when allowed to form dense colonies. Prairie Coreopsis can be distinguished from many other species of coreopsis by the less ragged appearance of its flowers and the characteristics of its foliage. The narrow, deeply lobed leaves are wider and less thread-like than Coreopsis grandiflora (Large-Flowered Coreopsis) and Coreopsis verticilliata (Whorled Coreopsis), which are not native to Illinois. Also, the leaves are shorter, more deeply lobed, and distributed more evenly along the stem than Coreopsis lanceolata (Lance-Leaved Coreopsis). Prairie Coreopsis is much shorter and blooms earlier than Coreopsis tripteris (Tall Coreopsis). Return