Azolla caroliniana

Azolla caroliniana

Taxobox
name = Carolina Azolla


image_width = 240px
image_caption = "Azolla caroliniana" (reddish) and "Lemna" (green) in a small pool
regnum = Plantae
divisio = Pteridophyta
classis = Pteridopsida
ordo = Salviniales
familia = Azollaceae
genus = "Azolla"
species = "A. caroliniana"
binomial = "Azolla caroliniana"
binomial_authority = Willd.

"Azolla caroliniana" (Carolina Azolla, Carolina Mosquito Fern, Water velvet) is a species of "Azolla" native to the Americas, in eastern North America from southern Ontario southward, and from the east coast west to Wisconsin and Texas, and in the Caribbean, and in Central and South America from southeastern Mexico (Chiapas) south to northern Argentina and Uruguay.Germplasm Resources Information Network: [http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?102986 "Azolla caroliniana"] ]

It is a freshwater aquatic fern, with scale-like fronds 5–10 mm long, green to reddish, most often reddish in strong light and in winter. They are covered in fine hairs that give it the appearance of velvet.Flora of North America: [http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=200005217 "Azolla caroliniana"] ] Aquatic Plant Information System: [http://el.erdc.usace.army.mil/aqua/apis/plants/html/azolla_s.html "Azolla"] ] It is able to fix nitrogen from the air by means of symbiotic cyanobacteria. It can survive winter water temperatures of 5 °C, with optimum summer growth between 25-30 ºC.NESAC: [http://megapib.nic.in/azolla.htm Package of Practice for Azolla] ]

Cultivation and uses

"Azolla caroliniana" is of commercial importance in cultivation in southern and eastern Asia as a bio-fertilizer, valued for its nitrogen-fixing ability, which benefits crops such as rice when the fern is grown under it and reduces the need for artificial fertilizer addition. The thick mat of fronds (up to 4 cm thick) also suppresses weed growth. Harvested fronds are also used as a food for fish and poultry. It is also often used as a floating plant in both coldwater and tropical aquaria, as well as in outdoor ponds; it is propagated by division.Hiscock, P. (2003). "Encyclopedia of Aquarium Plants". Interpret Publishing, United States and Canada ISBN 0-7641-5521-0.]

References


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Look at other dictionaries:

  • Azolla Caroliniana — Azolla caroliniana …   Wikipédia en Français

  • Azolla caroliniana — Azolla caroliniana …   Wikipédia en Français

  • Azolla caroliniana — Azol …   Wikipédia en Français

  • Azolla caroliniana — karolininė azolė statusas T sritis vardynas apibrėžtis Plūstinių šeimos dekoratyvinis augalas (Azolla caroliniana), paplitęs Šiaurės ir Pietų Amerikoje. atitikmenys: lot. Azolla caroliniana angl. fairy moss; mosquito plant šaltinis Valstybinės… …   Lithuanian dictionary (lietuvių žodynas)

  • Azolla caroliniana — ID 9156 Symbol Key AZCA Common Name Carolina mosquitofern Family Azollaceae Category Fern Division Pteridophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AL, AR, CT, DC, DE, FL, GA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MO, MS,… …   USDA Plant Characteristics

  • Azolla caroliniana — noun small free floating aquatic fern from the eastern United States to tropical America; naturalized in western and southern Europe • Syn: ↑mosquito fern, ↑floating fern, ↑Carolina pond fern • Hypernyms: ↑aquatic fern, ↑water fern • …   Useful english dictionary

  • Azolla caroliniana Willd. — Symbol AZCA Common Name Carolina mosquitofern Botanical Family Azollaceae …   Scientific plant list

  • Azolla — Azolla …   Wikipédia en Français

  • Azolla japonica — Saltar a navegación, búsqueda ? Azolla filiculoides Clasificación científica Reino: Plantae División …   Wikipedia Español

  • Azolla — Azolla …   Wikipédia en Français

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