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Potamogeton natans, commonly known as broad-leaved pondweed, [2] floating pondweed, [3] or floating-leaf pondweed, is an aquatic species in the genus Potamogeton native to quiet or slow-flowing freshwater habitats throughout the Holarctic Kingdom.
Flowers are solitary, bisexual, radial, with a long pedicel and usually floating or raised above the surface of the water, with girdling vascular bundles in receptacle. [ 11 ] [ 12 ] Some species are protogynous and primarily cross-pollinated, but because male and female stages overlap during the second day of flowering, and because it is self ...
Due to its popularity as a pond plant, and subsequent escape into rivers, it has established as an invasive alien species in parts of Europe, Australia, Africa and Japan. [ 1 ] [ 2 ] [ 3 ] It was one of five aquatic plants which were banned from sale in the UK from April 2014, and was the first prohibition of its kind there. [ 4 ]
Complete specimen of Nymphaea cf. gardneriana Planch. with several floating leaves, as well as submerged leaves with scale bar (50 cm) on a white background Complete specimen of Nymphaea nouchali var. caerulea (Savigny) Verdc. with scale bar (50 cm) on a white background Rhizome of Nymphaea gigantea "Albert De Lestang" with scale bar (5 cm) against a grey background Seeds of Nymphaea alba with ...
The genus name refers to their resemblance to the water lily Nymphaea. Nymphoides are aquatic plants with submerged roots and floating leaves that hold the small flowers above the water surface. Flowers are sympetalous, most often divided into five lobes (petals). The petals are either yellow or white, and may be adorned with lateral wings or ...
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.
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]
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.