Black-eyed Susan Posted on June 23, 2012 by Axie The roots were used for medicinal purposes– Ojibwas used it to treat snake bites. Aster family. Native to the Midwestern U.S. (a prairie flower!) Black-eyed Susan, Yellow Ox-eye Daisy (Rudbeckia hirta) Share this: Click to email a link to a friend (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to print (Opens in new window) Print Click to share on Pinterest (Opens in new window) Pinterest