Littorella uniflora

Littorella uniflora (vernacular name: (American) shoreweed^{[citation needed]}) is a species of aquatic flowering plant native to the Azores, Morocco, most of Europe excluding the dry southeast, Iceland, and the Faroes.^[2] It prefers to live mostly submerged in nutrient-poor freshwater habitats. When submerged, it draws CO₂ mostly through its roots and uses a mix of crassulacean acid metabolism (CAM) and C₃ carbon fixation for photosynthesis. If the water level drops and exposes the roots, it ceases using CAM.^[3]

Littorella uniflora
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Plantaginaceae
Genus:	Littorella
Species:	L. uniflora
Binomial name
Littorella uniflora (L.) Asch.[1]
Synonyms[2]
Littorella juncea P.J.Bergius Littorella lacustris L. Plantago uniflora L.