This clade does not currently have a node-based, phylogenetic definition. A synapomorphy that unites the members of this tribe is "an unusual two-lipped calyx in which the two upper lobes are much enlarged and the three lower lobes are reduced to small teeth."[3][2] Members of the Dipterygeae, as well as species found in its sister group, Amburaneae, are known to produce a variety of resins (balsams, coumarins, etc.).[4][2]
^Polhill RM (1981). "Dipterygeae". In Polhill RM, Raven PH (eds.). Advances in Legume Systematics, Part 1. Royal Botanic Gardens, Kew. pp. 233–242. ISBN9780855212247. Archived from the original on 2013-07-23.
^ abcdCardoso D, de Queiroz LP, Pennington RT, de Lima HC, Fonty É, Wojciechowski MF, Lavin M (2012). "Revisiting the phylogeny of papilionoid legumes: new insights from comprehensively sampled early-branching lineages". Am J Bot. 99 (12): 1991–2013. doi:10.3732/ajb.1200380. PMID23221500.