Black-eyed Susan (Rudbeckia hirta):
Sometimes known as the yellow daisy, black-eyed susans are extremely similar in appearance to ox-eyed daisies. As suggested by the name, the flower has a solid black center disk surrounded by yellow petals. It blooms in late summer and early autumn, and has four different main varieties that are found in different locations. One can be found only in Florida, one in the southeastern United States, one in the northeastern United States, and one is dispersed through most of North America. Black-eyed susans were believed by many Native American tribal nations to be useful medicinal herbs. They would use it to treat infections, colds, and even snake bites. Still a popular flower today, black-eyed susans were made the state flower of Maryland in 1918.
Black-eyed Susan