Schemes including Rudbeckia hirta

• NatureServe Explorer: An online encyclopedia of life. Version 7.1 (ELEMENT_GLOBAL.2.128304) Rudbeckia hirta
• Calflora (10327) Rudbeckia hirta
• New England Wild Flower Society's Flora Novae Angliae Rudbeckia hirta
• NatureWatch NZ Rudbeckia hirta
• GBIF (3114220) Rudbeckia hirta