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- Rudbeckia hirta, Rudbeckia missouriensis, Rudbeckia mollis, Rudbeckia subtomentosa, Rudbeckia triloba Lowell E. Urbatsch, Patricia B. Cox Treatment appears7 KB (348 words) - 21:08, 5 November 2020
- Rudbeckiinae genusRudbeckia sectionRudbeckia sect. Rudbeckia speciesRudbeckia subtomentosa Pursh Fl. Amer. Sept. 2: 575. 1813. Lowell E. Urbatsch, Patricia B. Cox3 KB (315 words) - 21:09, 5 November 2020