The family has only recently been recognized by taxonomists. The APG IV system of 2016 (unchanged from the 1998, 2003, and 2009 versions) does recognize this family. The family then includes over half a dozen genera, with only a few dozen species, occurring in Africa, in western South America and western North America. This circumscription includes the genus Cyanastrum, which sometimes has been treated as a separate family Cyanastraceae.
The following genera are recognised:
- Angiosperm Phylogeny Group (2016). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV" (PDF). Botanical Journal of the Linnean Society. 181 (1): 1–20. doi:10.1111/boj.12385. ISSN 0024-4074.
- Christenhusz, M. J. M. & Byng, J. W. (2016). "The number of known plants species in the world and its annual increase". Phytotaxa. Magnolia Press. 261 (3): 201–217. doi:10.11646/phytotaxa.261.3.1.
- Angiosperm Phylogeny Group III (2009), "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III", Botanical Journal of the Linnean Society, 161 (2): 105–121, doi:10.1111/j.1095-8339.2009.00996.x
- Tecophilaeaceae, Cyanastraceae in L. Watson and M.J. Dallwitz (1992 onwards). The families of flowering plants: descriptions, illustrations, identification, information retrieval. Version: Version: 27 April 2006. http://delta-intkey.com
- links at CSDL, Texas and more links at CSDL, Texas
- Tecophilaeaceae of Chile, por Chileflora[permanent dead link]