Sometimes taxonomists create new names for groups that already have a name. They may do this because they are unaware of the original name, or they may think the organism before them belongs to a different group when in fact it does not. If two or more names are found to apply to the same group, they are considered synonyms. In most cases, the first name takes priority and is considered to be the valid or accepted name. However, there can be exceptions, and it's not always easy to determine which of a series of synonyms should be considered valid or accepted. Here we list the synonyms provided to EOL by our classification partners. We also include other versions of the name that most likely refer to the same group, for example, misspellings in the literature or different variations of the authorship associated with the name.

Preferred marks the preferred name from each source. Import

Name Relationship
Oryza sativa L. Preferred
Oryza sativa var. fatua Prain Synonym

Species 2000 & ITIS Catalogue of Life: April 2013

Name Relationship
Oryza sativa L. Preferred
Oryza sativa f. spontanea
Oryza sativa subsp. japonica
Oryza sorghoidea Steud.
Oryza sativa var. formosana
Oryza formosana Masam. & Suzuki
Oryza nepalensis G. Don ex Steud.
Oryza palustris Salisb.
Oryza sativa var. savannae
Oryza elongata Steud.
Oryza praecox Lour.
Oryza communissima Lour.
Oryza aristata Blanco
Oryza marginata Steud.
Oryza pubescens Steud.
Oryza rubribarbis (Desv.) Steud.
Oryza sativa var. rubribarbis
Oryza repens Buch.-Ham. ex Steud.
Oryza perennis Moench
Oryza parviflora P.Beauv.
Oryza mutica Steud.
Oryza pumila Steud.
Oryza denudata Steud.
Oryza sativa var. plena
Oryza montana Lour.
Oryza glutinosa Lour.
Oryza plena (Prain) N.P.Chowdhury
Oryza segetalis Russell ex Steud.

NCBI Taxonomy

Name Relationship
Oryza sativa Preferred
Oryza sativa L. Authority

Integrated Taxonomic Information System (ITIS)

Name Relationship
Oryza sativa L. Preferred
Oryza sativa var. fatua Prain
Oryza elongata (Desv.) Steud. Other, see comments
Oryza rubribarbis (Desv.) Steud.
Oryza sativa var. elongata Desv.
Oryza sativa var. rubribarbis Desv.


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