Taxon 65 (6): 1278 (2016)
Tufted annuals or perennials. Leaf-blades flat or inrolled; ligules membranous. Inflorescence a spike, the spikelets somewhat recessed, arranged in two rows along one side of the rachis. Spikelets dorsally compressed, the uppermost male or sterile, breaking up at maturity; glumes 2, 1-nerved (or the upper sometimes 3- or 5-nerved, subequal or the lower shorter, membranous, persistent; lemma 3-nerved, membranous to firm, dorsally rounded or weakly keeled, shallowly bilobed at the apex, the midnerve (and occasional lateral nerves) exserted as a short awn or mucro; palea shorter than lemma.
Three species of tropical and southern Africa, Madagascar, the Americas and Australia. One species endemic in Australia.
Formerly included within Tripogon, but that genus was shown by Peterson et al. (2016) to consist of two distinct lineages, only one in Australia.
Peterson, P.M.; Romaschenko, K. & Arrieta, Y.H. (2016). A molecular phylogeny and classification of the Cynodonteae (Poaceae: Chloridoideae) with four new genera: Orthacanthus, Triplasiella, Tripogonella, and Zaqiqah; three new subtribes: Dactylocteniinae, Orininae, and Zaqiqahinae; and a subgeneric classification of Distichlis, Taxon 65(6): 1263–1287.