Aveneae

Poeae
silver hairgrass (Aira caryophyllea)
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Monocots
(unranked):	Commelinids
Order:	Poales
Family:	Poaceae
Subfamily:	Pooideae
Tribe:	Poeae R.Br. (1814)
Genera
118 genera, see text
Synonyms
Agrostideae Martinov (1820) Agrostidieae Dumort. (1824) Airopsideae Gren. & Godr. (1855) Alopecureae W.D.J. Koch (1837) Anthoxantheae Link ex Endl. (1830) Aveneae Dumort. (1824) Beckmannieae Nevski (1937) Calamagrostideae Trin. (1824) Cinneae Ohwi (1941) Coleantheae Husn. (1896) Cynosureae Dumort. (1824) Dupontieae A. Löve & D. Löve (1961, nom. nud.) Festuceae Dumort. (1824) Gaudinieae Rouy (1913) Graphephoreae (Asch. & Graebn.) Hyl. (1953) Hainardieae Greuter (1967) Holceae J. Presl (1846) Lolieae Link ex Endl. (1830) Koelerieae Schur (1866, nom. nud.) Milieae Link ex Endl. (1830) Phalarideae Kunth (1829) Phleeae Dumort. (1824) Scolochloeae Tzvelev (1968) Seslerieae W.D.J. Koch (1837) Triseteae Gren. & Godr. (1855) Vilfeae Trin. (1824)

118 genera, see text

The Poeae are the largest tribe of the grasses, with around 2,800 species in 118 genera. The tribe includes many lawn and pasture grasses.

Two separate tribes, Poeae and Aveneae, used to be distinguished based on morphology, but phylogenetic analysis showed that they are intermingled. Poeae now includes the former Aveneae. Phylogenetic analyses identified two lineages based on chloroplast genomes. The genera are classified in 19 subtribes.

Reticulate evolution occurred repeatedly in the tribe.

...
Wikipedia