''Pterostylis exalla'' is a plant in the orchid family Orchidaceae and is endemic to South Australia. It was first formally described in 2009 by David Jones and given the name ''Oligochaetochilus exallus''. The description was published in the journal ''The Victorian Naturalist'' from a specimen collected on the Wombat Plains in the Southern Lofty region. In 2010,

Gary Backhouse Gary may refer to: *Gary (given name), a common masculine given name, including a list of people and fictional characters with the name *Gary, Indiana, the largest city named Gary Places ;Iran * Gary, Iran, Sistan and Baluchestan Province ;Uni ...

changed the name to ''Pterostylis exalla''. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

(''exalla'') is derived from the Ancient Greek word ''exallos'' meaning "quite different".

References

exalla ''Exalla'' is a genus of flies in the family Lauxaniidae. Distribution The species are known from wet montane rainforest habitats in Colombia and Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), official ...

Orchids of South Australia Plants described in 2009 {{Orchidoideae-stub