{{Short description|Species of plant in the genus Littorella}} {{Speciesbox |image=Littorella uniflora.jpeg |image_caption= |genus=Littorella |species=uniflora |authority=(L.) Asch.<ref>Fl. Brandenburg 1: 544 (1864)</ref> |synonyms_ref=<ref name="684810-1" /> |synonyms= *''Littorella juncea'' <small>P.J.Bergius</small> *''Littorella lacustris'' <small>L.</small> *''Plantago uniflora'' <small>L.</small> }}
'''''Littorella uniflora''''' (vernacular name: (American) shoreweed{{citation needed|date=February 2021}}) is a species of aquatic flowering plant native to the Azores, Morocco, most of Europe excluding the dry southeast, Iceland, and the Faroes.<ref name="684810-1" >{{cite web |url=http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:684810-1 |title=''Littorella uniflora'' (L.) Asch. |author=<!--Not stated--> |date=2017 |website=Plants of the World Online |publisher=Board of Trustees of the Royal Botanic Gardens, Kew |access-date=2 December 2020 }}</ref> It prefers to live mostly submerged in nutrient-poor freshwater habitats. When submerged, it draws CO<sub>2</sub> mostly through its roots and uses a mix of crassulacean acid metabolism (CAM) and C<sub>3</sub> carbon fixation for photosynthesis. If the water level drops and exposes the roots, it ceases using CAM.<ref>{{cite journal |doi=10.1046/j.1365-3040.2000.00615.x |title=Physiological and photosynthetic plasticity in the amphibious, freshwater plant, ''Littorella uniflora'', during the transition from aquatic to dry terrestrial environments |year=2000 |last1=Robe |first1=W. E. |last2=Griffiths |first2=H. |journal=Plant, Cell & Environment |volume=23 |issue=10 |pages=1041–1054 |doi-access=free |bibcode=2000PCEnv..23.1041R }}</ref>
==References== {{Reflist}}
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Category:Plantaginaceae Category:Freshwater plants Category:Plants described in 1864
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