Corn chamomile is an annual forb. The flowers are 0.75 inches in diameter and are borne at the ends of branched stems. Flowers resemble daisies with white ray flowers and yellow disk centers. The seeds are 10 ribbed without glandular bumps. Leaves are alternate and finely dissected and mature plants are 10 to 30 inches tall. There is no odor when leaves are crushed, unlike Mayweed chamomile. Stems are erect, smooth, and highly branched above. Corn chamomile germinates readily in the spring and fall. It has a dense, fibrous root system, which spreads rapidly during wet periods.