Australian Systematic Botany Australian Systematic Botany Society
Taxonomy, biogeography and evolution of plants

Just Accepted

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A revision of the Triodia basedowii species complex and close relatives (Poaceae: Chloridoideae)

Benjamin Anderson , Kevin Thiele , Matthew Barrett

Abstract

Perennial grasses commonly known as "spinifex" (Triodia R.Br.) are iconic Australian plants predominantly found in the arid interior of the continent. In some areas, such as the economically important Pilbara region of Western Australia, current species taxonomy does not account for observed diversity. Previous morphological and molecular studies of Triodia basedowii E.Pritz. and related species have revealed multiple unnamed lineages requiring taxonomic recognition. Here we describe and name 8 new species of Triodia: T. birriliburu B.M.Anderson, T. chichesterensis B.M.Anderson, T. glabra B.M.Anderson & M.D.Barrett, T. infesta B.M.Anderson & M.D.Barrett, T. mallota B.M.Anderson & M.D.Barrett, T. nana B.M.Anderson, T. scintillans B.M.Anderson & M.D.Barrett, and T. vanleeuwenii B.M.Anderson & M.D.Barrett. We also provide recircumscriptions and revised descriptions for T. basedowii, T. lanigera Domin, T. concinna N.T.Burb. and T. plurinervata N.T.Burb. A key to species and photographs are included.

SB17011  Accepted 07 July 2017

© CSIRO 2017