Caatinganthus is a genus of Brazilian plants in the tribe VernonieaeDr. Sterling C. Keeley, University of Hawai`i, Vernonieae- The Evil Tribe within the family Asteraceae.Robinson, Harold Ernest. 1999. Smithsonian Contributions to Botany 89: 15–16, f. 19–20.Tropicos, Caatinganthus H. Rob.
Species Caatinganthus harleyi H.Rob. - Bahia Caatinganthus rubropappus (Soar.Nunes) H.Rob. - Pernambuco, Rio Grande do Norte
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