They are all conspecific but based on different types. Based on the info provided, Forsskal's name has priority in species rank. Assuming there is no impediment, i.e., an earlier use of the comb. Pavonia flavo-ferruginea, based on a different type. Thomas G. Lammers Classification, Nomenclature, Phylogeny and Biogeography of the Campanulaceae, s. lat.
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