- ↑ database, NODC Taxonomic Code, 1996
- ↑ Lamiales of North America Update, 2011
- ↑ database, The PLANTS Database, 2000
- ↑ database, The PLANTS Database, 1996
- ↑ U. S. Fish and Wildlife Service, 1986Endangered and Threatened Wildlife and Plants; Determination of Endangered Status for Scutellaria montana (Large-flowered Skullcap) Federal Register, vol. 51, no. 119
- ↑ 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
