''Juncus planifolius'' is a species of
rush
Rush(es) may refer to:
Places
United States
* Rush, Colorado
* Rush, Kentucky
* Rush, New York
* Rush City, Minnesota
* Rush Creek (Kishwaukee River tributary), Illinois
* Rush Creek (Marin County, California), a stream
* Rush Creek (Mono Cou ...
, commonly known as broadleaf rush, broad-leaved rush,
or grass-leaved rush. It naturally occurs in
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
,
New Zealand,
Hawaii and
South America.
In New Zealand ''J. planifolius'' is found in open, wet ground, and can be typically found on exposed clay, beside tracks or drains.
Recently ''J. planifolius'' has been introduced to the northern hemisphere. It was found in Hawai'i in 1930 and has spread to most of the islands. The species arrived in Ireland by 1973. It is now well established on Pacific coast of North America, where the plant was first collected in Oregon in 1980. The first California record was in 2008,
[Zika PF, 2009. Noteworthy Collections. California. Madrono, 56:130.] but populations were probably well established before then. ''Juncus planifolius'' may have arrived as a contaminant in vines planted in commercial cranberry bogs, but is now spreading in native coastal bogs, where it may displace native plants.
In North America, it is recognized by its unbranched stems, basal leaves with no sharp demarcation of sheath and blade, and blackish tepals.
References
planifolius
Flora of Australia
Flora of New Zealand
Flora of South America
Flora of Hawaii
Plants described in 1810
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