Defiance (awnless) wheat is a cross between White Hamburg and Golden Drop wheat varieties, originally cultivated at the Colorado Experiment Station in 1871. This tall, white-stemmed wheat is typically grown from spring sowing and was once grown across parts of the western United States. Defiance is Colorado’s most famous wheat. However, it disappeared after the Green Revolution. Mad Ag discovered one lb. in northern Vermont and planted it again in Colorado for the first time in 75 years.