Doesn't look a lot like an iris, does it? It's not clear if botanists have settled the question. This might be Belamcanda chinensis. Blackberry or leopard lily came here as a garden plant, and perhaps as medicine. It has been used in its native east Asia to treat a wide variety of ailments. One of the more interesting ones is arrow poisoning. Did they use poison arrows in China or Japan? Indeed they did. Blackberry-lily has been reported wild from AL, AR, CT, DE, FL, GA, IA, IL, IN, KS, KY, LA, MD, MI, MN, MO, MS, NC, NE, NJ, NY, OH, OK, PA, SC, SD, TN, TX, VA, VT, WI, and WV. Cultivated, Lenawee Co MI, 7/7/12. Iris family, Iridaceae.