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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Poales

Familia: Poaceae
Subfamilia: Oryzoideae
Tribus: Ehrharteae – Oryzeae – Phyllorachideae – Streptogyneae – incertae sedis
Genera: Chikusichloa – Ehrharta – Humbertochloa – Hygroryza – Leersia – Luziola – Maltebrunia – Microlaena – Oryza – Phyllorachis – Porteresia – Potamophila – Prosphytochloa – Rhynchoryza – Streptogyna – Suddia – Tetrarrhena – Zizania – Zizaniopsis – Zotovia

Oryzoideae Kunth ex Beilschm. Flora 16(2): 52, 109. (1833)

Type genus: Oryza L. Sp. Pl. 1. 133. (1753)


Ehrhartoideae Caro (1982) accepted pre 2016
Ehrhartinae Link (1827) unranked


Oryzoideae Burmeist., Handb. Naturgesch. 208. (1837)
Oryzoideae Parodi ex Conert, in Hegi, Ill. Fl. Mittel-Eur. 1(3) Lief. 1: 70. (1979)
Oryzoideae Parodi ex Caro, Dominguezia 4: 10. (1982)
Oryzoideae Duist., Blumea 32(1): 158. (1987)


Kunth, K.S. 1833. Flora 16(2): 52, 109.

Additional references

Soreng, R.J., Davidse, G., Peterson, P.M., Zuloaga, F.O., Judziewicz, E.J., Filgueiras, T.S., Morrone, O. & Komaschenko, K. [2000 onwards.] World-wide Phylogenetic Classification of Poaceae (Gramineae). Catalogue of New World Grasses, Tropicos Project 10. Website. Reference page.
Soreng, R.J., Peterson, P.M., Romaschenko, K., Davidse, G., Zuloaga, F.O., Judziewicz, E.J., Filgueiras, T.S., Davis, J.I. & Morrone, O. 2015. A worldwide phylogenetic classification of the Poaceae (Gramineae). Journal of Systematics and Evolution 53(2): 117–137. DOI: 10.1111/jse.12150 Paywall PDF. Reference page.


International Plant Names Index. 2022. Oryzoideae. Published online. Accessed: Sept. 19 2022. 2015. Oryzoideae. Missouri Botanical Garden. Published online. Accessed: 3 Apr. 2015.

Vernacular names
English: Rice and its relatives

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]

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)








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. doi:10.1111/jse.12262. ISSN 1674-4918.
Grass Phylogeny Working Group II (2012). "New grass phylogeny resolves deep evolutionary relationships and discovers C4 origins". New Phytologist. 193 (2): 304–312. doi:10.1111/j.1469-8137.2011.03972.x. hdl:2262/73271. ISSN 0028-646X. PMID 22115274. open access
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. doi:10.1371/journal.pone.0064642. ISSN 1932-6203. PMC 3667173. PMID 23734211. open access

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