''Juncus edgariae'' is a species of rush, commonly called Edgar's rush or wīwī, that is endemic to

New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...

. The species was described in 2001 by Lawrie Johnson and Karen Wilson. It had previously been confused with '' Juncus gregiflorus'', which is now considered endemic to Australia. The species name ''edgariae'' is in honour of New Zealand botanist Elizabeth Edgar. ''Juncus edgariae'' is the most abundant rush species in New Zealand, and is widespread throughout, including the

Kermadec Kermadec or de Kermadec may refer to: Geography * Kermadec Islands, a subtropical island arc in the South Pacific Ocean northeast of New Zealand * Kermadec Plate, a long narrow tectonic plate located west of the Kermadec Trench * Kermadec Trench, ...

and

Chatham Islands The Chatham Islands ( ; Moriori language, Moriori: , 'Misty Sun'; ) are an archipelago in the Pacific Ocean about east of New Zealand's South Island, administered as part of New Zealand, and consisting of about 10 islands within an approxima ...

. Found commonly from between the coast to the hills, it is usually located in open shrubland, seasonally wet places or around the edges of wetlands. It has been introduced to Britain.

References

edgariae Endemic flora of New Zealand Plants described in 2001 Taxa named by Lawrence Alexander Sidney Johnson Taxa named by Karen Louise Wilson {{Poales-stub