Adults are white with a variable grey fasciation and suffusion. Reniform marks of punctate blackish fasciation found on the forewing. Some plants are grown and prized aesthetically for their development of fasciation. The ground colour is deep yellow with diffuse reddish fasciation. Bacterial and viral infections can also cause fasciation. Fasciation can also be caused by random genetic mutation. Fasciation is the broadening or flattening of cylindrical organs such as stems. Fasciation may also cause plant parts to increase in weight and volume in some instances.