Juncus squarrosus

{{Short description|Species of rush}}

{{Speciesbox

|image=Juncus squarrosus Sturm14.jpg

|image_caption=Botanical illustration

|image2=Juncus.squarrosus3.-.lindsey.jpg

|image2_caption=Close-up of flowers

|genus=Juncus

|species=squarrosus

|authority=L.Sp. Pl.: 327 (1753)

|synonyms_ref=

|synonyms={{Collapsible list|

• Juncus ellmanii C.E.Hubb., Sandwith & Turrill
• Juncus sprengelii Willd.
• Juncus strictus Lucé

}}}}

Juncus squarrosus, called goose corn, heath rush, and mosquito rush, is a species of flowering plant in the family Juncaceae, native to Iceland, Europe, and Morocco, and introduced to Greenland, Svalbard, Tasmania, New Zealand, and the US state of Wisconsin.{{cite web |url=http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:443512-1 |title=Juncus squarrosus L. |author= |date=2017 |website=Plants of the World Online |publisher=Board of Trustees of the Royal Botanic Gardens, Kew |access-date=19 January 2021 }}{{cite web |title=Juncus squarrosus goose corn |url=https://www.rhs.org.uk/Plants/9521/i-Juncus-squarrosus-i/Details |publisher=The Royal Horticultural Society |access-date=19 January 2021 |quote=Other common names; ...heath rush, moss rush}}{{cite web |url=https://plants.usda.gov/core/profile?symbol=JUSQ |title=Plant profile for Juncus squarrosus L. mosquito rush |author= |date= |website=Plants Database |publisher=USDA |access-date=19 January 2021 }} It is pollution-tolerant.{{cite journal |last1=Britton |first1=Andrea J. |last2=Hester |first2=Alison J. |author-link2=Alison Hester |last3=Hewison |first3=Richard L. |last4=Potts |first4=Jacqueline M. |last5=Ross |first5=Louise C. |year=2017 |title=Climate, pollution and grazing drive long-term change in moorland habitats |journal=Applied Vegetation Science |volume=20 |issue=2 |pages=194–203 |doi=10.1111/avsc.12260 |bibcode=2017AppVS..20..194B |s2cid=89179740}}