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Dryopteris filix-mas - (L.)Schott.

Common Name Male Fern
Family Dryopteridaceae
USDA hardiness 3-8
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.
Habitats Damp undergrowth, woodlands and other shady positions[7, 9, 31].
Range Throughout Europe, including Britain, and temperate Asia.
Edibility Rating    (2 of 5)
Other Uses    (3 of 5)
Weed Potential No
Medicinal Rating    (4 of 5)
Care (info)
Fully Hardy Well drained soil Moist Soil Semi-shade
Dryopteris filix-mas Male Fern


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Dryopteris filix-mas Male Fern
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Summary

Form: Irregular or sprawling, Upright or erect.


Physical Characteristics

 icon of manicon of fern
Dryopteris filix-mas is an evergreen Fern growing to 1.2 m (4ft) by 1 m (3ft 3in) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 2. It is in leaf all year, and the seeds ripen from July to September.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and can grow in nutritionally poor soil. Suitable pH: mildly acid and neutral soils. It can grow in semi-shade (light woodland). It prefers dry or moist soil and can tolerate drought.

UK Hardiness Map US Hardiness Map

Synonyms

Nephrodium felix-mas.

Habitats

Woodland Garden Dappled Shade; Shady Edge; Ground Cover;

Edible Uses

Edible Parts: Leaves  Root
Edible Uses:

Young fronds - cooked[105, 177]. A flavour resembling asparagus, broccoli and artichokes[142]. Some caution is advised, see the notes above on toxicity. The rhizomes can be eaten raw or cooked[257]. They were eaten raw as part of a regime for losing weight[257].

References   More on Edible Uses

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.
Anodyne  Antibacterial  Antiinflammatory  Antirheumatic  Antiviral  Astringent  Febrifuge  Vermifuge  
Vulnerary

The male fern is one of the most popular and effective treatments for tape worms. The root stalks are anodyne, antibacterial, anti-inflammatory, antiviral, astringent, febrifuge, vermifuge and vulnerary[7, 9, 13, 19, 21, 171, 178, 218, 238]. The root contains an oleoresin that paralyses tapeworms and other internal parasites and has been used as a worm expellent[222, 238]. The active ingredient in this oleo-resin is 'filicin', roots of this species contain about 1.5 - 2.5% filicin[240]. It is one of the most effective treatments known for tapeworms - its use should be immediately followed by a non-oily purgative such as magnesium sulphate, Convolvulus scammonia or Helleborus niger in order to expel the worms from the body[7, 238, 254]. An oily purge, such as caster oil, increases the absorption of the fern root and can be dangerous[238]. The root is also taken internally in the treatment of internal haemorrhage, uterine bleeding, mumps and feverish illnesses[238]. The root is harvested in the autumn and can be dried for later use[7]. This remedy should be used with caution and only under the supervision of a qualified practitioner[21, 238]. The root is toxic and the dosage is critical[238]. Pregnant women and people with heart complaints should not be prescribed this plant[7]. See also notes above on toxicity. Externally, the root is used as a poultice in the treatment of abscesses, boils, carbuncles and sores[238, 268].

References   More on Medicinal Uses

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Other Uses

Compost  Potash  Tannin

A compost of fern leaves is very beneficial on tree seed beds, aiding germination[20]. The ashes of the plant are rich in potash and has been used in making soap and glass[4]. An effective ground cover plant. Although it is usually deciduous, its decaying fronds make a good weed-suppressing mulch in the winter[200]. Space the plants about 60cm apart each way[208]. The roots contain about 10% tannin[223].

Special Uses

Ground cover

References   More on Other Uses

Cultivation details

Landscape Uses:Border, Container, Ground cover, Massing, Rock garden, Specimen, Woodland garden. Prefers an acid to neutral soil, succeeding in ordinary fertile soil in a shady position[175, 200]. Succeeds in poor soils[208]. 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[1]. Prefers a good supply of water at its roots[1] but succeeds in dry shade[28] and tolerates drought when it is established[200]. A very hardy plant, tolerating temperatures down to about -30°c[200], the plant remains evergreen in the milder areas of Britain[233]. Members of this genus are rarely if ever troubled by browsing deer[233]. An aggregate species[17]. There are many named forms, selected for their ornamental value[187]. Special Features: Attractive foliage, North American native, Wetlands plant, Attracts butterflies, There are no flowers or blooms.

References   Carbon Farming Information and Carbon Sequestration Information

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Propagation

Spores - can be sown at any time of the year in a greenhouse. Surface sow on a sterilised compost and keep moist, possibly by placing the pot in a plastic bag. Germinates in 1 - 3 months at 20°c. Pot up small clumps of the plants when they are large enough to handle and grow on in a shady part of the greenhouse until large enough to plant out. Division in spring. Larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.

Other Names

If available other names are mentioned here

Native Plant Search

Search over 900 plants ideal for food forests and permaculture gardens. Filter to search native plants to your area. The plants selected are the plants in our book 'Plants For Your Food Forest: 500 Plants for Temperate Food Forests and Permaculture Gardens, as well as plants chosen for our forthcoming related books for Tropical/Hot Wet Climates and Mediterranean/Hot Dry Climates. Native Plant Search

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Dryopteris barbigera Fern0.0 -  LMHSM04 
Dryopteris blandfordii Fern0.0 -  LMHSM04 
Dryopteris carthusianaNarrow Buckler Fern, Spinulose woodfernFern1.0 6-8 MLMHSMWe242
Dryopteris crassirhizomaCrown Wood-FernFern1.0 5-9  LMHSM14 
Dryopteris cristataCrested Wood FernFern0.5 4-8  LMHSM04 
Dryopteris dilatataShield FernFern1.2 4-8  LMHSM243
Dryopteris expansaSpiny Wood Fern, Spreading woodfernFern0.4 3-7  LMHFSM231
Dryopteris fragransFragrant WoodfernFern0.2 3-7  LMHSM101
Dryopteris marginalisMarginal Woodfern, Leather Wood FernFern0.8 3-8 MLMHSM040
Dryopteris odontoloma Fern0.0 -  LMHSM04 
Dryopteris oreadesMountain Male FernFern0.6 5-9  LMHSM04 
Dryopteris schimperiana Fern0.0 -  LMHSM04 
Dryopteris sieboldii Fern0.5 7-10  LMHSM10 
Gymnocarpium dryopterisNorthern oak fernFern0.3 2-7 SLMFSMWe003

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

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Expert comment

Author

(L.)Schott.

Botanical References

17200

Links / References

For a list of references used on this page please go here

Readers comment

Roger B Hutchins   Sat Jun 24 2006

I have noticed a tiny larva that eats the spore holders on Male fern in the Tavistock area in Devon. The insect is hard to find as it coveres itself in a bundle of brown hairs. I have found that if a frond containg these larvae is placed on a warm garden table the insects wriggle out.Can any one tell me what is the adult insect, and is it found all over

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