Oxypetalum decaisneanum Oxypetalum laxum Calostigma baetaeanum Calostigma guilleminianum Oxypetalum baetaeanum Oxypetalum baetaeanum Oxypetalum insigne f. baetaeanum Oxypetalum insigne var. baetaeanum Calostigma insigne Oxypetalum insigne var. boraceiense
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024