Rudbeckia palustris Eggert ex C.L. Boynton & Beadle. Seep Orange Coneflower. Hab: Seepages. Dist: IL and MO south to e. and c. TX; apparently disjunct eastwards in e. TN and nw. GA.
Origin/Endemic status: Endemic
Synonymy: = F, Tn; = Rudbeckia fulgida Aiton var. palustris – Ar, FNA21, NcTx, Tx; ~ Rudbeckia fulgida Aiton var. speciosa (Wendroth) Perdue, misapplied; < Rudbeckia fulgida Aiton var. umbrosa (C.L.Boynton & Beadle) Cronquist – C, K3, K4; ~ Rudbeckia speciosa Wender., misapplied
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