ʻBoysenʼ blackberry was an industry standard for nearly 50 years, but until recently its origin was unclear. DNA fingerprinting suggests ʻBoysenʼ is a hybrid of ʻLoganʼ × ʻAustin Mayesʼ and ʻLucretiaʼ is not a parent. Photo courtesy of Kim Hummer, USDA-ARS.