Cynodonteae
Cynodonteae is a large Tribe (biology), tribe of Poaceae, grasses in the subfamily Chloridoideae, with over 800 species. Like most of the subfamily, species in the tribe are adapted to warm, arid climates and use the C4 photosynthesis, C4 photosynthetic pathway. Some species, such as Bermuda grass (''Cynodon dactylon'') or goosegrass (''Eleusine indica''), are widespread weeds, introduced in many countries. Most of the 94 genera are classified in one of 21 subtribes, but some are still unplaced (''incertae sedis'') within the tribe. References

Chloridoideae Poaceae tribes {{Chloridoideae-stub ...
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Chloridoideae
Chloridoideae is one of the largest subfamily, subfamilies of Poaceae, 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 (''Cynodon dactylon''), goosegrass (''Eleusine indica'') or finger grass (''Chloris (plant), Chloris''), but also millet species grown in some tropical regions, namely finger millet (''Eleusine coracana'') and teff (''Eragrostis tef''). With the exception of some species in ''Ellisochloa'' and ''Eleusine indica'', most of the subfamily's species use the C4 carbon fixation, C4 photosynthetic pathway. The first evolutionary transition from C3 photosynthesis, C3 to C4 photosynthesis in the grasses probably occurred in this subfamily, around 32 to 25 million years ago in the Oligocene. Phylogeny Relationships of tribes in the Chloridoideae according to a 2017 phylogenetic classifi ...
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