Stiffly erect, branched, roughly hairy plants with deeply cut leaves. Flower heads like those of black-eyed Susan (Rudbeckia hirta) but have fewer ray flowers and a taller, more prominent central cone. Plant with other easy-care perennials.
R. columnifera. MEXICAN HAT. From the Great Plains. To 2 ft. tall, 1 ft. wide. Flowers have drooping, yellow or brownish purple rays and a tall, columnar brown cone; look like sombreros.
R. pinnata. PRAIRIE or YELLOW CONEFLOWER. Native to central North America. To 4 ft. tall, 1 ft. wide, with yellow rays and a nearly globular brown cone.