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Uses

Toxic parts

Although we have found no reports of toxicity for this species, a number of ferns contain carcinogens so some caution is advisable[1]. Many ferns also contain 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[2].

Edible uses

Notes

Root. An emergency food, it is only used when all else fails[2].

Material uses

Plants can be grown as a ground cover when planted out about 15cm apart each way[3].
There are no material uses listed for Cystopteris fragilis.

Medicinal uses(Warning!)

A decoction of the roots has been used as an anthelmintic enema[4]. A cold compound infusion of the plant has been used both internally and externally as a treatment for injury[5].

Unknown part

Ecology

Ecosystem niche/layer

Soil surface

Ecological Functions

Ground cover

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Spores - best sown as soon as ripe on the surface of a humus-rich sterilized soil. Keep the compost moist, preferably by putting a plastic bag over the pot. Germinates in 1 - 3 months at 20°c[6].Pot on small clumps of plantlets as soon as they are large enough to handle and keep humid until they are well established. Do not plant outside until the ferns are at least 2 years old. Division in spring.

Practical Plants is currently lacking information on propagation instructions of Cystopteris fragilis. Help us fill in the blanks! Edit this page to add your knowledge.



Cultivation

Prefers a shady position in a moist but well-drained soil, succeeding in most soil types[1]. Plants can tolerate up to 4 hours direct sun per day[1]. Prefers a pH between 6.5 and 7, but tolerates a range from 5.5 to 7.5[1]. Plants do especially well when grown in a shaded position on old mortared walls[7].

Members of this genus are rarely if ever troubled by browsing deer[8]. Plants die back early in dry seasons[1].

A very ornamental plant[9].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Cystopteris fragilis. Do you know of an interaction that should be listed here? edit this page to add it.

Polycultures & Guilds

There are no polycultures listed which include Cystopteris fragilis.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Cystopteris fragilis
Genus
Cystopteris
Family
Dryopteridaceae
Imported References
Edible uses
Medicinal uses
Material uses & Functions
Botanic
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Provides forage for
Provides shelter for
Environment
Hardiness Zone
2
Heat Zone
?
Water
moderate
Sun
partial sun
Shade
permanent shade
Soil PH
Soil Texture
Soil Water Retention
Environmental Tolerances
    Ecosystems
    Native Climate Zones
    None listed.
    Adapted Climate Zones
    None listed.
    Native Geographical Range
    None listed.
    Native Environment
    None listed.
    Ecosystem Niche
    Root Zone Tendancy
    None listed.
    Life
    Deciduous or Evergreen
    Herbaceous or Woody
    ?
    Life Cycle
    ?
    Growth Rate
    ?
    Mature Size
    Fertility
    ?
    Pollinators
    ?
    Flower Colour
    ?
    Flower Type

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    "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki. "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki.


    "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki.

    "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki.

    "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki., "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki., "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki. "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki., "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki., "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki. "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki. "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki.






    References

    1. ? 1.01.11.21.31.41.5 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    2. ? 2.02.12.2 Schofield. J. J. Discovering Wild Plants - Alaska, W. Canada and the Northwest. ()
    3. ? 3.03.1 Thomas. G. S. Plants for Ground Cover J. M. Dent & Sons ISBN 0-460-12609-1 (1990-00-00)
    4. ? 4.04.1 Chopra. R. N., Nayar. S. L. and Chopra. I. C. Glossary of Indian Medicinal Plants (Including the Supplement). Council of Scientific and Industrial Research, New Delhi. (1986-00-00)
    5. ? 5.05.1 Moerman. D. Native American Ethnobotany Timber Press. Oregon. ISBN 0-88192-453-9 (1998-00-00)
    6. ? Bird. R. (Editor) Growing from Seed. Volume 4. Thompson and Morgan. (1990-00-00)
    7. ? Grey-Wilson. C. & Matthews. V. Gardening on Walls Collins ISBN 0-00-219220-0 (1983-00-00)
    8. ? Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. ISBN 0 460 86048 8 (1990-00-00)
    9. ? F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
    10. ? Clapham, Tootin and Warburg. Flora of the British Isles. Cambridge University Press (1962-00-00)

    "image:Cystopteris fragilis 4.jpg|248px" cannot be used as a page name in this wiki.

    Facts about "Cystopteris fragilis"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyDryopteridaceae +
    Belongs to genusCystopteris +
    Functions asGround cover +
    Has binomial nameCystopteris fragilis +
    Has common nameBrittle Bladder Fern +
    Has drought toleranceIntolerant +
    Has edible partRoot +
    Has edible useUnknown use +
    Has hardiness zone2 +
    Has imageCystopteris fragilis 4.jpg +
    Has mature height0.15 +
    Has mature width0.23 +
    Has medicinal partUnknown part +
    Has medicinal useAnthelmintic +
    Has primary imageCystopteris fragilis 4.jpg +
    Has search namecystopteris fragilis + and brittle bladder fern +
    Has shade tolerancePermanent shade +
    Has soil ph preferenceAcid +, Neutral + and Alkaline +
    Has soil texture preferenceSandy +, Loamy + and Clay +
    Has soil water retention preferenceWell drained +
    Has sun preferencePartial sun +
    Has taxonomic rankSpecies +
    Has taxonomy nameCystopteris fragilis +
    Has water requirementsmoderate +
    Inhabits ecosystem nicheSoil surface +
    Is deciduous or evergreenDeciduous +
    Is taxonomy typeSpecies +
    PFAF cultivation notes migratedNo +
    PFAF edible use notes migratedNo +
    PFAF material use notes migratedNo +
    PFAF medicinal use notes migratedNo +
    PFAF propagation notes migratedNo +
    PFAF toxicity notes migratedNo +
    Tolerates nutritionally poor soilNo +
    Uses mature size measurement unitMeters +
    Has subobjectThis property is a special property in this wiki.Cystopteris fragilis + and Cystopteris fragilis +