Kaliwatan sa tanom nga bulak ang Oldenlandia lancifolia.^[1] Una ning gihulagway ni Heinrich Christian Friedrich Schumacher, ug gihatagan sa eksakto nga ngalan ni Dc..^[2] Ang Oldenlandia lancifolia sakop sa kahenera nga Oldenlandia, ug kabanay nga Rubiaceae.^[1][3]

Kini nga matang hayop na sabwag sa:

• Groupe d'Aldabra
• Burkina Faso
• Cabinda (lalawigan)
• Kotidaybor
• Trinidad ug Tobago
• Surinam
• Tunga-tungang Aprikanhong Republika
• Zimbabwe
• Mozambique
• Kenya
• Etyopiya
• Tanzania
• Madagascar
• Uganda
• Guinea
• Kamerun
• Zambiya
• Sierra Leone
• Demokratikanhong Republika sa Konggo
• Congo
• Burundi
• amihanang Habagatang Aprika
• Peru
• Ecuador
• amihanan-sidlakang & amihanang & habagatan-sidlakang & kasadpan-sentrong Brasil
• Venezuela
• Costa Rica
• Nicaragua
• Cuba
• Anggola
• Namibya
• Senegal
• Botswana
• Malawi
• Chad
• Sudan
• Rwanda
• amihanan-sidlakang & habagatan-kasadpang & habagatan-sidlakang Mehiko
• Ondoras
• Dominikanhong Republika
• Haiti
• Jamaica
• Puerto Rico
• Leeward Islands
• Gulpo sa Mehiko
• Guyana
• Colombia
• Ghana
• Maurisyo
• Benin
• Togo
• Guinea-Bissau
• Belize
• Windward Islands
• Liberya
• Mali
• Nigyeriya
• Gulf of Guinea Islands
• Gabon
• Guatemala
• Panama
• Gineang Ekwatoryal

Ang kaliwatan gibahinbahin ngadto sa matang nga nahiubos:^[1]

• O. l. lancifolia
• O. l. scabridula
• O. l. seseensis

1. ↑ ^{1.0 1.1 1.2} Roskov Y., Kunze T., Orrell T., Abucay L., Paglinawan L., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Decock W., De Wever A., Didžiulis V. (ed) (2019). "Species 2000 & ITIS Catalogue of Life: 2019 Annual Checklist". Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X. TaxonID: 43092240. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ DC. (1830) , In: Prodr. 4: 425
3. ↑ Govaerts R. (ed). For a full list of reviewers see: http://apps.kew.org/wcsp/compilersReviewers.do (2019). WCSP: World Checklist of Selected Plant Families (version Aug 2017). In: Species 2000 & ITIS Catalogue of Life, 2019 Annual Checklist (Roskov Y., Ower G., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., Nieukerken E. van, Zarucchi J., Penev L., eds.). Digital resource at www.catalogueoflife.org/annual-checklist/2019. Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X.