Takhtajan, A.L. (1997), Diversity and Classification of Flowering Plants: - [secondary reference]

Doweld, A.B. (2001), Tentamen Systematis Plantarum Vascularium (Tracheophyta): XXVIII [tax. nov.]

Thorne, R.F. & Reveal, J.L. (2007), An Updated Classification of the Class Magnoliopsida ("Angiospermae"). Botanical Review 73(2): 98 [secondary reference]

---