Lactuca pulchella
Lactuca pulchella, known as blue lettuce, common blue lettuce, or wild blue lettuce, is a North American flowering plant in the sunflower family, Asteraceae. Some authors place it as a subspecies or variety of a broader concept of Lactuca tatarica, while others consider L. tatarica to occur only in Europe and Asia. Lactuca pulchella is commonly separated into the genus Mulgedium, as Mulgedium pulchellum.