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Dryopteris

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Dryopteris
a genus of the fern family Aspleniaceae; rhizomes contain a toxin thought to be a thiaminase and which causes somnolence, stumbling gait and blindness due to encephalopathy in sheep and cattle. Includes D. borreri, D. filix-mas. Called also male fern.


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The 1,200 specimens of feathery Dryopteris filix-mas are nourished by a mixture of bacteria, nutrients and rainwater, which can be adjusted in response to climate and light.
This genus has an intermediate morphology between Dryopteris and Arachniodes; therefore, species of Acrorumohra were once treated in these genera.
Also, new for 2008, SALUS--Shield Fern, an extract of Dryopteris Root and has been tested to show Anti-oxidant activity.
 
 
 
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