| Nechamandra | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Alismatales |
| Family: | Hydrocharitaceae |
| Subfamily: | Hydrilloideae |
| Genus: | Nechamandra Planch. |
| Species: | N. alternifolia |
| Binomial name | |
| Nechamandra alternifolia | |
| Synonyms [1] | |
| |
Nechamandra is a monotypic genus of an aquatic plant family Hydrocharitaceae. [2] The sole species is Nechamandra alternifolia. [1] It is found in slow moving fresh water. [2]
This is a rare plant in lakes and ponds. It is known from Asian fresh waters of Sudan, Socotra, Sri Lanka, India, Nepal, Bangladesh, China, Myanmar, Thailand, and Vietnam. [3] [4] [5]
Chromosome numbers of 2n = 14 is reported from India [2] and Myanmar. [3]
Hydrocharitaceae is a flowering plant family including 16 known genera with a total of ca 135 known species, that including a number of species of aquatic plant, for instance the tape-grasses, the well known Canadian waterweed, and frogbit.
Elodea is a genus of 6 species of aquatic plants often called the waterweeds described as a genus in 1803. Classified in the frog's-bit family (Hydrocharitaceae), Elodea is native to the Americas and is also widely used as aquarium vegetation and laboratory demonstrations of cellular activities. It lives in fresh water. An older name for this genus is Anacharis, which serves as a common name in North America.
Egeria is a genus of three species of aquatic plants in the family Hydrocharitaceae described as a genus in 1849. native to warm-temperate South America.
Vallisneria is a genus of freshwater aquatic plant, commonly called eelgrass, tape grass or vallis. The genus is widely distributed in tropical and subtropical regions of Asia, Africa, Europe, and North America.
The Potamogetonaceae, commonly referred to as the pondweed family, is an aquatic family of monocotyledonous flowering plants. The roughly 110 known species are divided over six genera. The largest genus in the family by far is Potamogeton, which contains about 100 species.
Potamogeton is a genus of aquatic, mostly freshwater, plants of the family Potamogetonaceae. Most are known by the common name pondweed, although many unrelated plants may be called pondweed, such as Canadian pondweed. The genus name means "river neighbor", originating from the Greek potamos (river) and geiton (neighbor).
Hydrocharis is a genus of aquatic plants in the family Hydrocharitaceae described as a genus by Carl Linnaeus in 1753. It is widespread across much of Europe and Asia, plus a few scattered locations in Africa. It is also reportedly naturalized in parts of North America.
Najas, the water-nymphs or naiads, is a genus of aquatic plants. It is cosmopolitan in distribution, first described for modern science by Linnaeus in 1753. Until 1997, it was rarely placed in the Hydrocharitaceae, and was often taken as constituting the family Najadaceae.
Najas minor, known as brittle naiad or brittle waternymph, is an annual aquatic plant, a submersed herb. It is native to Europe, Asia and North Africa from the Netherlands to Morocco east to Japan and the Philippines, including China, Siberia, Central Asia, Iran, Turkey, Ukraine, Germany, France Italy and a host of other countries. It is now introduced to North America and considered a weedy invasive species in the eastern half of the United States from Florida to Oklahoma to New Hampshire to Ontario to South Dakota. This plant prefers calm waters, such as ponds, reservoirs, and lakes, and is capable of growing in depths up to 4 meters.
Nobuyuki Tanaka is an economic botanist at the Tokyo Metropolitan University, the Makino Botanical Garden in Kōchi Prefecture, Japan.
Halodule is a genus of plants in the family Cymodoceaceae described as a genus in 1841. It is widespread on tropical and semi-tropical ocean shores of all continents except Europe and Antarctica.
Potamogeton maackianus is an aquatic plant species in the genus Potamogeton. It is found in slow moving fresh water.
Potamogeton octandrus is an aquatic plant species in the genus Potamogeton. It is found in slow-moving fresh water. The specific epithet means 'eight-stamened'.
Potamogeton wrightii, is an aquatic plant species in the genus Potamogeton. It is found in slow-moving fresh water.
Ottelia is a genus of an aquatic plant family Hydrocharitaceae described as a genus in 1805. The genus is native to tropical and subtropical regions of Africa, Asia, South America, and Australia.
Blyxa is a genus of an aquatic plant of the family Hydrocharitaceae described as a genus in 1806.
Caldesia parnassifolia, is an aquatic species in the Alismataceae. It is found in slow-moving fresh water.
Norio Tanaka is an aquatic botanist at Tsukuba Botanical Garden, National Science Museum, Tokyo, Japan.
Appertiella is a genus of an aquatic plant of the family Hydrocharitaceae described as a genus in 1982. There is only one known species, Appertiella hexandra, endemic to Madagascar.
Limnobium, common names spongeplant and American frogbit, is a group of aquatic plants in the Hydrocharitaceae described as a genus in 1814. It is widespread in freshwater environments in Latin America, the West Indies, and the United States.
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