Dorstenia cuspidata var. preussii Dorstenia cuspidata var. brinkmaniana Dorstenia cuspidata var. humblotiana
Kosaria cuspidata Dorstenia caulescens Dorstenia tetractis Dorstenia unyikae Dorstenia walleri Dorstenia gourmaensis var. floribunda Dorstenia walleri var. minor Dorstenia gourmaensis Dorstenia quarrei
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024