Compositae Working Group (CWG) (2026). Global Compositae Database. Porophyllum curticeps Malme. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1187169 on 2026-04-08
subsequent type designationCarneiro, C. R.; Ritter, M. R. (2016). Lectotypifications in Brazilian Porophyllum (Asteraceae: Tageteae). <em>Phytotaxa.</em> 278(1)., available online athttps://doi.org/10.11646/phytotaxa.278.1.7[details] Available for editors