Koeleria (Gramineae: Aveneae) is revised for New Zealand. Three indigenous species are recognised: K. cheesemanii, K. novozelandica, and a new species K. riguorum of wet seepages in tussock grassland in Nelson. All species are endemic.

Thirty three taxa of tribe Poeae, except Festuca, are reported as naturalised in New Zealand. Four other records are unsubstantiated. A key to native and naturalised genera is provided, as well as keys to naturalised species.

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