Dupatya guyanensis Paepalanthus apacarensis var. humilis Paepalanthus guyanensis Paepalanthus savannarum Paepalanthus savannarum var. glabrescens Paepalanthus steyermarkii Syngonanthus savannarum Syngonanthus savannarum var. glabrescens Syngonanthus venezuelensis
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024