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Encyclopedia > Giant salvinia
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Giant salvinia

The fern Salvinia molesta floating on a pond surface
Scientific classification
Kingdom: Plantae
Division: Pteridophyta
Class: Pteridopsida
Order: Marsileales
Family: Salviniaceae
Genus: Salvinia
Species: S. molesta
Binomial name
Salvinia molesta
D.Mitch.

Giant salvinia (Salvinia molesta) is an aquatic fern, native to Brazil. It has become an invasive weed in many parts of the world. Download high resolution version (1600x1200, 453 KB)Photograph of Salvinia molesta provided by photographer, Eric Guiinther File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Divisions Land plants (embryophytes) Non-vascular plants (bryophytes) Hepaticophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants Adiantum pedatum (a fern... Classes Marattiopsida Osmundopsida Gleicheniopsida Pteridopsida A fern, or pteridophyte, is any one of a group of some twenty thousand species of plants classified in the Division Pteridophyta, formerly known as Filicophyta. ... Subclasses Subclass: Cyatheatae Subclass: Schizaeatae Subclass: Pteriditae Subclass: Polypoditae The Pteridopsida is a class of plants in the Division Pteridophyta that includes the modern ferns. ... Families Azollaceae (mosquito ferns) Marsileaceae (water-clovers, pillworts) Salviniaceae (water-spangles) The Order Marsileales was formerly known as the Hydropteridales, but by modern rules of botanic nomenclature, the name has been changed. ... Genera Salvinia The Salviniaceae are a family of ferns, which contains the single genus Salvinia. ... Genera Salvinia The Salviniaceae are a family of ferns, which contains the single genus Salvinia. ... In biology, binomial nomenclature is a standard convention used for naming species. ... Classes Marattiopsida Osmundopsida Gleicheniopsida Pteridopsida A fern, or pteridophyte, is any one of a group of some twenty thousand species of plants classified in the Division Pteridophyta, formerly known as Filicophyta. ... Purple flowers of the highly invasive Pattersons Curse infest the Warrumbungle National Park in New South Wales, Australia. ... Dandelions, shown here in proliferation, are commonly thought of as weeds. ...


The fern grows extremely quickly, capable of starting from small fragments and doubling in population size every few days, with the result that the surface of ponds, reservoirs, and lakes are covered by a floating mat up to 2 feet thick. This plant growth blocks sunlight needed by other aquatic plants and especially algae to oxygenate the water. A pond is a body of water smaller than a lake. ... Nothing!HAHAHAHAHA! ... A lake is a body of water surrounded by land. ... Sunlight is also the trade name of the worlds first packaged, branded laundry soap producted by Lever Brothers. ... A seaweed (Laurencia) up close: the branches are multicellular and only about 1 mm thick. ...


A tiny weevil, Cyrtobagous salviniae, is currently being studied as a biocontrol. Families Nemonychidae Anthribidae Belidae Attelabidae Brentidae Caridae Ithyceridae Curculionidae A weevil is a beetle from the Curculionoidea superfamily. ... Biological control of pests and diseases is a method of controlling pests and diseases in agriculture that relies on natuaral predation rather than introduced chemicals. ...


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  Results from FactBites:
 
Giant Salvinia (288 words)
The floating leaves of giant salvinia are oblong (0.5 to 1.5 inches long) with a distinct midrib along which the leaf may fold forming a compressed chain-like appearance.
In giant salvinia the leaf hairs have a single stalk that divides into four branches that reconnect at the tip, giving the hair a cage-like or egg-beater appearance.
Giant salvinia has sporangia but are thought to reproduce only by fragmentation.
Station Information - Giant salvinia (116 words)
Giant salvinia (Salvinia molesta), is an aquatic fern, native to Brazil, but now an invasive weed in many parts of the world.
The fern grows extremely quickly, capable of starting from small fragments and doubling in population size every few days, with the result that the surface of ponds, reservoirs, and lakes are covered by a floating mat up to 2 feet thick.
A tiny weevil, Cyrtobagous salviniae, is under study as a biocontrol.
  More results at FactBites »


 

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