Synonyms
Centrocarpha acutifolia Sweet
Rudbeckia acuminata C.L.Boynton & Beadle
Rudbeckia foliosa C.L.Boynton & Beadle
Rudbeckia tenax C.L.Boynton & Beadle
Rudbeckia chrysomela Michx.
Rudbeckia newmanii Loudon
Rudbeckia truncata Small
Centrocarpha chrysomela (Michx.) Sweet
Centrocarpha discolor (Pursh) Sweet
Rudbeckia discolor Pursh
Rudbeckia aspera Desf.