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Azolla filiculoides - Lam.                
                 
Common Name Azolla
Family Azollaceae
Synonyms
Known Hazards None known
Habitats Stagnant and slow moving waters[270].
Range Western N. America
Edibility Rating  
Medicinal Rating  
Care
Fully Hardy Water Plants Semi-shade Full sun

Summary       

Physical Characteristics       
 icon of manicon of flower
Azolla filiculoides is a PERENNIAL growing to 0.1 m (0ft 4in) at a fast rate.
It is hardy to zone 7 and is not frost tender. The flowers are hermaphrodite (have both male and female organs)It can fix Nitrogen.


Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It can grow in water.
Azolla filiculoides Azolla


http://commons.wikimedia.org/wiki/User:Stickpen
Azolla filiculoides Azolla
http://www.biolib.de/
   
Habitats       
 Pond;
Edible Uses                                         
None known
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.



None known
Other Uses
Green manure;  Soil conditioner.

The plant is an exceedingly good source of nitrogen-rich biomass that can be used as a fertilizer or can be added to the compost heap[200, 270].
Cultivation details                                         
Requires a sunny or lightly shaded position in still or slowly flowing water. Plants are not very cold tolerant, surviving overwintering in colder winter areas by means of submerged resting buds[200]. Plants seldom reproduce by spores[200]. This species has a symbiotic relationship with an algae which fixes atmospheric nitrogen[200].
                                                                                 
Propagation                                         
Seed -
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Expert comment                                         
 
      
Author                                         
Lam.
                                                                                 
Botanical References                                         
200270
                                                                                 
Links / References                                         

[200]Huxley. A. The New RHS Dictionary of Gardening. 1992.
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
[270] Flora of N. America
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.

Readers comment                                         
 
Elizabeth H.
planmetabolome Sun Oct 7 2007

www.plantmetabolome.com medicinal plant database

Elizabeth H.
Dominic Fri Jan 16 2009
Azolla is a fern and should have spore-producing organs rather than flowers. .
Rowan A.
Factsheet on Azolla Mar 11 2013 12:00AM
Azolla is an invasive non-native species in Britain, so we should either not use it at all, or use it with extreme caution. See for example link below.
GB non-native species secretariat
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Subject : Azolla filiculoides  
             

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