Oryzoideae

Oryzoideae (syn. Ehrhartoideae) is a subfamily of the true grass family Poaceae. It has around 120 species in 19 genera, notably including the major cereal crop rice.^[1] Within the grasses, this subfamily is one of three belonging to the species-rich BOP clade, which all use C₃ photosynthesis; it is the basal lineage of the clade.^[2][3]

Oryzoideae
Rice (Oryza sativa)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Poaceae
Clade:	BOP clade
Subfamily:	Oryzoideae Kunth ex Beilschm. 1833
Tribes
Ehrharteae Nevski 1937 Oryzeae Dumort. 1824 Streptogyneae C.E. Hubb. ex Calderón & Sonderstr. 1980 Phyllorachideae C.E. Hubb. 1939
Synonyms[1]
Ehrhartoideae Caro 1982 Oryzoideae Caro 1982 Ehrhartineae Link 1827 (unranked) Oryzeae Burmeist. 1837 (unranked)

It contains four tribes and one genus of unclear position (incertae sedis): Suddia (thought likely to be in the tribe Phyllorachideae).^[1] Phylogenetic analyses have resolved the branching order of these clades within the subfamily:^[1]

	Bambusoideae (Bamboos) Pooideae
Oryzoideae	Streptogyneae Ehrharteae Phyllorachideae Oryzeae