Article · Wikipedia archive · Last revised Jun 19, 2026

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. Within the grasses, this subfamily is one of three belonging to the species-rich BOP clade; it is sister to the other two lineages in the clade, Bambusoideae and Pooideae. All members of the BOP clade use C3 photosynthesis

Last revised
Jun 19, 2026
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Oryzoideae
Rice (Oryza sativa)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Spermatophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Clade: BOP clade
Subfamily: Oryzoideae
Kunth ex Beilschm. 1833
Tribes
Synonyms1
  • Ehrhartoideae Caro 1982
  • Oryzoideae Caro 1982
  • Ehrhartineae Link 1827 (unranked)
  • Oryzeae Burmeist. 1837 (unranked)

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; it is sister to the other two lineages in the clade, Bambusoideae and Pooideae.23 All members of the BOP clade use C3 photosynthesis23

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

Oryzoideae
References

References

  1. Soreng, Robert J.; Peterson, Paul M.; Romaschenko, Konstantin; Davidse, Gerrit; Teisher, Jordan K.; Clark, Lynn G.; Barberá, Patricia; Gillespie, Lynn J.; Zuloaga, Fernando O. (2017). "A worldwide phylogenetic classification of the Poaceae (Gramineae) II: An update and a comparison of two 2015 classifications". Journal of Systematics and Evolution. 55 (4): 259–290. Bibcode:2017JSyEv..55..259S. doi:10.1111/jse.12262. hdl:10261/240149. ISSN 1674-4918.
  2. Grass Phylogeny Working Group II (2012). "New grass phylogeny resolves deep evolutionary relationships and discovers C4 origins". New Phytologist. 193 (2): 304–312. Bibcode:2012NewPh.193..304.. doi:10.1111/j.1469-8137.2011.03972.x. hdl:2262/73271. ISSN 0028-646X. PMID 22115274. Open access icon
  3. Janke, Axel; Zhao, Lei; Zhang, Ning; Ma, Peng-Fei; Liu, Qi; Li, De-Zhu; Guo, Zhen-Hua (2013). "Phylogenomic Analyses of Nuclear Genes Reveal the Evolutionary Relationships within the BEP Clade and the Evidence of Positive Selection in Poaceae". PLOS ONE. 8 (5) e64642. Bibcode:2013PLoSO...864642Z. doi:10.1371/journal.pone.0064642. ISSN 1932-6203. PMC 3667173. PMID 23734211. Open access icon