Rudbeckia tenax C.L. Boynton & Beadle. Glade Orange Coneflower. Hab: Calcareous glades, fields, and rocky woodlands.
Origin/Endemic status: Endemic
Synonymy: = F, Tn, Campbell & Seymour (2013); < Rudbeckia fulgida Aiton var. fulgida – FNA21, K3, K4
Heliophily: 8
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