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This is the most widespread Four-O'Clock species in Illinois that is from North America. The commonly cultivated garden plant by the same name is from South America; it is non-hardy. There are a few wild Mirabilis spp. in the Chicago area that are adventive from the west. They usually have more narrow leaves, hairier stems, and flowers with paler colors. In some of the Great Plains states, the Wild Four-O'Clock can have pale yellow flowers, but this color form doesn't appear to occur in Illinois. Return