Chloridoideae is one of the largest subfamilies of grasses, with roughly 150 genera and 1,600 species, mainly found in arid tropical or subtropical grasslands. Within the PACMAD clade, their sister group is the Danthonioideae. The subfamily includes widespread weeds such as Bermuda grass or goosegrass, but also millet species grown in some tropical regions, namely finger millet and teff.
Arthrostylidiinae is a subtribe of bamboo. It comprises 15 genera. The plant grows in tropical regions.
The Guaduinae is a subtribe of bamboo. It comprises 5 recognized genera.
The Melocanninae is a subtribe of bamboo.
The Hickeliinae are a subtribe of bamboo. It comprises nine genera.
Oryzeae is a tribe of flowering plants in the true grass family, Poaceae. It contains 11 genera, including both cultivated rice (Oryza) and wild rice (Zizania).
Eragrostideae is a tribe of grasses in subfamily Chloridoideae. It contains roughly 500 species, which all use the C4 photosynthetic pathway.
Danthonioideae is a mainly southern hemisphere subfamily of grasses, containing the single tribe Danthonieae and one unplaced genus, with altogether roughly 300 species. It includes herbaceous to partially woody perennial or annual (less common) grasses that grow in open grasslands, shrublands, and woodlands. It belongs to the PACMAD clade of grasses, but unlike some other lineages in that clade, grasses in the Danthonioideae exclusively use the C3 photosynthetic pathway. Its sister group is the subfamily Chloridoideae.
Paniceae is a large tribe of the subfamily Panicoideae in the grasses (Poaceae), the only in the monotypic supertribe Panicodae. It includes roughly 1,500 species in 84 genera, primarily found in tropical and subtropical regions of the world. Paniceae includes species using either of the C4 and C3 photosynthetic pathways, as well as presumably intermediate species. Most of the millets are members of tribe Paniceae.
Diarrheneae is a tribe of grasses, containing two genera.
Phaenospermatae is a tribe of grasses, subfamily Pooideae, containing a single genus, Phaenosperma. The tribe previously included several other genera, which are now placed in a separate tribe, Duthieeae.
Micrairoideae is a subfamily of the grass family Poaceae, distributed in tropical and subtropical regions. Within the PACMAD clade, it is sister to subfamily Arundinoideae.
Ehrharteae is a tribe in the grass family, comprising four genera.
Brylkinieae is a tribe of grasses, containing a single genus, Brylkinia. It used to be placed in tribe Meliceae, and had previously included a second genus, Koordersiochloa.
Centropodieae is a tribe of grasses containing only two genera. It is the earliest-branching lineage in the subfamily Chloridoideae and contains its only genus with C3 species, Ellisochloa, while all other species in the tribe and subfamily use the C4 photosynthetic pathway.
Isachneae is a tribe of tropical and subtropical grasses in subfamily Micrairoideae, with around 120 species in six genera.
Arundinelleae is a tribe of grasses with roughly 90 species in three genera, mainly distributed in tropical and subtropical areas. The tribe's sister group are the Andropogoneae, with which they are classified in supertribe Andropogonodae. All species in this tribe use C4 carbon fixation.
Paspaleae is a tribe of the Panicoideae subfamily in the grasses (Poaceae), native mainly to the tropical and subtropical Americas but with a number of species introduced to other regions. It includes roughly 680 species in 39 genera. Species in this tribe use either of the C3 or C4 photosynthetic pathways.
Steyermarkochloeae is a tribe of the Panicoideae subfamily in the grasses (Poaceae), native to tropical South America. There are only two species in two genera, Arundoclaytonia and Steyermarkochloa. The tribe probably belongs to a basal lineage within the subfamily. Species in this tribe use the C3 photosynthetic pathway.
Duthieeae is a tribe of grasses, subfamily Pooideae, containing eight genera.
