The circumscription of genera in Tofieldiaceae has been controversial. Many authors do not recognize Triantha as a separate genus from Tofieldia.[8][10][11] A few authors have sunk other genera into Tofieldia as well.[12] A phylogenetic analysis, based on two nuclear genes and ten chloroplast genes, has confirmed that all five of the genera are monophyletic and that Triantha and Tofieldia are close sister taxa.[13]
^Vernon H. Heywood, Richard K. Brummitt, Ole Seberg, and Alastair Culham. Flowering Plant Families of the World. Firefly Books: Ontario, Canada. (2007). ISBN978-1-55407-206-4.
^Anthony Huxley, Mark Griffiths, and Margot Levy (1992). The New Royal Horticultural Society Dictionary of Gardening. The Macmillan Press,Limited: London. The Stockton Press: New York. ISBN978-0-333-47494-5 (set).
^Umberto Quattrocchi. 2000. CRC World Dictionary of Plant Names volume IV. CRC Press: Boca Raton; New York; Washington,DC;, USA. London, UK. ISBN978-0-8493-2673-8 (set). (see External links below).
^Tofieldiaceae. At: International Plant Names Index. (see External links below).
^ abMinoru N. Tamura. 1998. "Nartheciaceae" pages ??. In: Klaus Kubitzki (general editor) with Klaus Kubitzki, Herbert F.J. Huber, Paula J. Rudall, Peter F. Stevens, and Thomas Stützel (volume editors). The Families and Genera of Vascular Plants volume III. Springer-Verlag: Berlin;Heidelberg, Germany. ISBN978-3-540-64060-8 (vol. III).
^Frederick H. Utech, Loran C. Anderson, and John C. Packer. 2002. pages 5-6. In: "Liliaceae". pages ??. In: Flora of North America Editorial Committee. Flora of North America vol. 26. Oxford University Press: UK. ISBN978-0-19-513729-3 (vol. 22). (see External links below).
^David J. Mabberley. 2008. Mabberley's Plant-Book third edition (2008). Cambridge University Press: UK. ISBN978-0-521-82071-4
^Armen L. Takhtajan (Takhtadzhian). Flowering Plants second edition (2009). Springer Science+Business Media. ISBN978-1-4020-9608-2.
^Wendy B. Zomlefer. 1997. "The genera of Tofieldiaceae in the southeastern United States". Harvard Papers in Botany. 2:179-194.
^Cite error: The named reference azuma2011 was invoked but never defined (see the help page).