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CommentsThe distinctive bicolored flowers are very beautiful, making Blue-Eyed Mary easy to identify. This woodland wildflower is unusual in having flowers that are close to a true blue color. The only other species in the genus that has been observed in Illinois is Collinsia violacea (Violet Collinsia). This latter wildflower is also a winter annual that has corollas with a deeper shade of purplish violet and more narrow lanceolate leaves. Violet Collinsia prefers sunnier habitats than Blue-Eyed Mary, and it is quite rare within the state, although more common in the Southern Plains region of the United States.