Black-Eyed Susan — Rudbeckia hirta (common names: Black-eyed Susan, Blackiehead, Brown Betty, Brown Daisy, Brown-eyed Susan, Gloriosa Daisy, Golden Jerusalem, Poorland Daisy, Yellow Daisy, Yellow Ox-eye Daisy) is a flowering plant in the family Asteraceae. It is an upright annual (sometimes biennial or perennial) native to most of North America, and is one of a number of plants with the common name Black-eyed Susan that also has purple on the side.
The plant can reach a height of 1-2 m. It has alternate, mostly basal leaves 20-75 cm long, covered by coarse hair. It flowers from June to August, with inflorescences measuring 10-15 cm in diameter (up to 30 cm in some cultivars), with yellow ray florets circling a brown, domed center of disc florets.