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Dryopteris marginalis Marginal woodfern Evergreen fern (1 Page of 5) The Dryopteris marginalis plant species is found in N. America - Canada to Georgia and westwards to the Rockies. It is a member of the Dryopteridaceae family. Common gardeners may know the plant as Marginal woodfern. Cultivation | Propagation | General Uses Medicinal | Edible Uses Latin Name: Dryopteris marginalis Common Name: Marginal woodfern Family: Dryopteridaceae Author: (L.)A.Gray. Known Hazards: Although we have found no reports for this species, a number of ferns contain carcinogens so some caution is advisable[200].
The fresh plant contains thiaminase, an enzyme that robs the body of its vitamin B complex. In small quantities this enzyme will do no harm to people eating an adequate diet that is rich in vitamin B, though large quantities can cause severe health problems. The enzyme is destroyed by heat or thorough drying, so cooking the plant will remove the thiaminase[172]. However, there have been reports for other species of ferns suggesting that even cooked fronds can have a long term harmful effect. Some caution is therefore advised. Mature Height: 0.75 Mature Width: 0.3 Habitat: Damp woods and swamps[187].
Cultivation Notes: Prefers an acid to neutral soil, succeeding in ordinary fertile soil in a shady position. Succeeds in full sun but grows best in a shady position with only 2 - 3 hours sun per day[200]. Tolerates a pH range from 4.5 to 7[200]. Dislikes heavy clay. Prefers a good supply of water at its roots but succeeds in dry shade and tolerates drought when it is established.
A very hardy plant, tolerating temperatures down to about -30°c[200].
Members of this genus are rarely if ever troubled by browsing deer[233].
Hybridizes in the wild with several other species[187].
For further Dryopteris marginalis gardening information click on one of the blue links below Cultivation | Propagation | General Uses Medicinal | Edible Uses
The information above has been supplied solely via the hard work and dedication of the team at 'Plants for a Future'. View their bibliography

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