Olyreae

{{Short description|Tribe of grasses}}

{{Automatic taxobox

| image = Raddia brasiliensis - 02.jpg

| image_caption = Raddia brasiliensis

| display_parents = 2

| taxon = Olyreae

| authority = Kunth ex Spenn.

| synonyms =

• supertribe Olyrodae L. Liu (1980)
• tribe Buergersiochloeae S.T. Blake (1946)
• tribe Parianeae C.E. Hubb. (1934)

| synonyms_ref =

| subdivision_ranks = Genera

| subdivision = 21 genera, see text

}}

Olyreae is a tribe of grasses in the bamboo subfamily (Bambusoideae). Unlike the other two bamboo tribes, Olyreae are herbaceous and do not have a woody stem. Their sister group are the tropical woody bamboos (Bambuseae).{{cite journal |author=Kelchner S, Bamboo Phylogeny Working Group |title=Higher level phylogenetic relationships within the bamboos (Poaceae: Bambusoideae) based on five plastid markers |journal=Molecular Phylogenetics and Evolution |volume=67 |issue=2 |year=2013 |pages=404–413 |url=http://www.isu.edu/~kelchner/Kelchner_Lab/Publications_files/Kelchner%26BPG_MPE2013.pdf |issn=1055-7903 |doi=10.1016/j.ympev.2013.02.005 |pmid=23454093 |url-status=dead |archiveurl=https://web.archive.org/web/20150605041641/http://www.isu.edu/~kelchner/Kelchner_Lab/Publications_files/Kelchner%26BPG_MPE2013.pdf |archivedate=2015-06-05 }}

Olyreae grow in the understorey of humid tropical forests. They are mainly distributed in the Neotropics around the Amazon Basin but there is also one species from Africa, Olyra latifolia, and one from New Guinea, Buergersiochloa bambusoides.

The tribe is divided into three subtribes with 21 genera:{{cite journal|last1=Soreng|first1=Robert J.|last2=Peterson|first2=Paul M.|last3=Romaschenko|first3=Konstantin|last4=Davidse|first4=Gerrit|last5=Teisher|first5=Jordan K.|last6=Clark|first6=Lynn G.|last7=Barberá|first7=Patricia|last8=Gillespie|first8=Lynn J.|last9=Zuloaga|first9=Fernando O.|title=A worldwide phylogenetic classification of the Poaceae (Gramineae) II: An update and a comparison of two 2015 classifications|journal=Journal of Systematics and Evolution|volume=55|issue=4|year=2017|pages=259–290|issn=16744918|doi=10.1111/jse.12262|doi-access=free|hdl=10261/240149|hdl-access=free}}{{open access}}

style="text-align:left; border-spacing:1em;" ! Buergersiochloinae ! Olyrinae ! Parianinae

style="vertical-align:top;" | Buergersiochloa | Agnesia Arberella Cryptochloa Diandrolyra Ekmanochloa Froesiochloa Lithachne Maclurolyra Mniochloa Olyra Parodiolyra Piresiella Raddia Raddiella Rehia Reitzia (syn. Piresia) Sucrea Taquara | Eremitis Pariana Parianella