แหล่งที่มา WikiPedia: Holmbergia http://www.ipni.org/ipni/idPlantNameSearch.do?id=1... http://www.ipni.org/ipni/idPlantNameSearch.do?id=2... http://www.irmng.org/aphia.php?p=taxdetails&id=128... http://www.plantsoftheworldonline.org/taxon/urn:ls... http://www.plantsoftheworldonline.org/taxon/urn:ls... http://www.theplantlist.org/tpl1.1/record/tro-7201... http://legacy.tropicos.org/Name/40026765 http://legacy.tropicos.org/Name/7201422 https://npgsweb.ars-grin.gov/gringlobal/taxonomyge... https://www.itis.gov/servlet/SingleRpt/SingleRpt?s...
