Actinocephalus bongardii Dupatya hilairei Eriocaulon bongardii Paepalanthus hilairei var. piauhyensis Paepalanthus hilairei var. pohlianus Paepalanthus hilairei f. typicus Eriocaulon maximiliani
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024