Rudbeckia terranigrae J.J.N. Campbell & W.R. Seymour. Hab: Blackland prairies and perhaps other habitats. Dist: Black Belt of AL and MS, and perhaps more widespread, the distribution currently poorly understood.
Origin/Endemic status: Endemic
Taxonomy Comments: For additional information, see Campbell & Seymour (2014).
Synonymy: = K4, Campbell & Seymour (2013); < Rudbeckia fulgida Aiton var. fulgida – FNA21