แหล่งที่มา WikiPedia: Circandra http://www.ipni.org/ipni/idPlantNameSearch.do?id=1... http://www.irmng.org/aphia.php?p=taxdetails&id=137... http://www.plantsoftheworldonline.org/taxon/urn:ls... http://legacy.tropicos.org/Name/40009213 https://npgsweb.ars-grin.gov/gringlobal/taxonomyge... https://www.gbif.org/species/7329485 https://www.inaturalist.org/taxa/575242
