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Floating water-plantain grows predominantly in base-poor lakes, ponds and slow-flowing rivers with low to moderate nutrient levels, [11] [15] although in some cases it appears able to tolerate alkaline systems and / or high nutrient levels. [8] [16] It has proved able to colonise certain man-made freshwater systems, especially canals. [9] [11]
Surfaces of ponds, reservoirs, and lakes are covered by a floating mat 10–20 cm (in some rare cases up to 60 cm) thick. The plant's growth clogs waterways and blocks sunlight needed by other aquatic plants and especially algae to carry out photosynthesis, thereby deoxygenating the water. As it dies and decays, decomposers use up the oxygen in ...
Salvinia natans (commonly known as floating fern, [4] floating watermoss, [5] floating moss, or commercially, water butterfly wings) [6] is an annual floating aquatic fern, which can appear superficially similar to moss.
Other notable invasive plant species include floating pennywort, [58] Curly leaved pondweed, [57] the fern ally Water fern [57] and Parrot's feather. [59] Many of these invasive plants have been sold as oxygenating plants for aquaria or decorative plants for garden ponds and have then been disposed of into the environment. [57]
Limnobium laevigatum is a floating aquatic plant, which can be mistaken for water hyacinth (Eichornia crassipes) due to their superficial similarity.Juvenile plants grow in rosettes of floating leaves that lie prostrate upon the water surface, a distinguishing character of the juvenile plant is the presence of spongy aerenchyma tissue upon the abaxial surface (underside) of the leaf.
Riccia fluitans, the floating crystalwort, [3] is an aquatic floating plant of the liverwort genus Riccia which is popular among aquarists as a retreat for young fry and is used in live-bearing tanks. It can be found floating in ponds, and often forms thick mats on and under the water surface. It normally grows quickly at the surface.