Commelina caroliniana, sometimes known as the Carolina dayflower, is an herbaceous plant in the dayflower family native to India and Bangladesh. Both the scientific name and the common name are misleading as the plant was described based on specimens found in the southeastern United States before it was known that the plant had been introduced from India. It was most likely introduced to South Carolina in the late 17th century along with rice seed from India. Its flowers emerge from summer to fall and rarely into the winter.