Wildflower.org Plant Database: Black-eyed Susan The Rudbeckia hirta (commonly called Black-Eyed Susan) is Maryland’s state flower The Rudbeckia hirta (commonly called Black-Eyed Susan) is Maryland’s state flower.  This flower is in the sunflower family.  Native to North America, it can be found in every state except Alaska and Hawaii.  There are actually a few varieties […]