They form a Suborder Zingiberineae Kress in taxonomic classification, with the following phylogeny, the four families being grouped into two superfamilies.
Cladogram II: Phylogeny of Suborder Zingiberineae (gingers)
^Andersson, L. (1998). «Strelitziaceae». In: K. Kubitzki. The Families and Genera of Vascular Plants. IV. Flowering Plants. Monocotyledons. Alismatanae and Commelinanae (except Gramineae). Berlin: Springer-Verlag. pp. 451-454.
^Kress, W. J. (1990). The phylogeny and classification of the Zingiberales. Annals of the Missouri Botanical Garden, 698-721. https://www.jstor.org/stable/2399669
^ abcJudd et al. 2007. Zingiberales. Plant Systematics, a Phylogenetic Approach. 3rd edition. Sinauer. Pp. 301-302.