Eriosema arenicola deserves species status. Its nearest relatives are discussed and a key to distinguish the taxa is provided. Three maps depict the occurrence of the taxa.
van der Maesen, L. J. G., & Wieringa, J. J. (2012). Eriosema arenicola stat. nov. and some notes on Eriosema glomeratum (Leguminosae-Papiliondeae) in West Africa. Blumea, 57(2), 158-159. https://doi.org/10.3767/000651912X658665