The flowers are white or rosy, and resemble those of "Trifolium repens". It first reported in "Trifolium repens" in 1935. The larvae feed at night on leaves of "Trifolium repens" and "Lotus corniculatus". The national plant is the shamrock ("Trifolium dubium" or "Trifolium repens"). "Aeschynomene villosa", "Medicago sativa", and "Trifolium repens". The larvae feed on various grasses and "Trifolium repens". "Trifolium repens" is a tetraploid (4n=32) with two diploid ancestors. The larvae feed on "Lespedeza bicolor" and "Trifolium repens". It was first reported in white clover ("Trifolium repens ") as early as 1939. "Trifolium repens", white or Dutch clover, is a perennial abundant in meadows and good pastures. The most widely cultivated clovers are white clover, "Trifolium repens", and red clover, "Trifolium pratense".