- ↑ database, NODC Taxonomic Code, 1996
- ↑ Lamiales of North America Update, 2011
- ↑ database, The PLANTS Database, 2000
- ↑ database, The PLANTS Database, 1996
- ↑ Paton, A., and E. Putievsky, 1996Taxonomic problems and cytotaxonomic relationships between and within varieties of Ocimum basilicum and related species (Labiatae) Kew Bulletin, vol. 51, no. 3
- ↑ 6.0 6.1 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) (2014). "Species 2000 & ITIS Catalogue of Life: 2014 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 26 Mayo 2014.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)
- ↑ (Canada);http://siit.conabio.gob.mx (Mexico) ITIS Regional: The Integrated Taxonomic Information System