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Adiantum pedatum - L.                
                 
Common Name Northern Maidenhair,American Maidenhair Fern
Family Polypodiaceae
Synonyms
Known Hazards Although we have found no reports of toxicity for this species, a number of ferns contain carcinogens so some caution is advisable[200]. 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[172].
Habitats Rich, deciduous woodlands, often on humus-covered talus slopes and moist lime soils, from sea level to 700 metres[270].
Range N. America - Alaska to Quebec and Nova Scotia, south to California and Georgia. E. Asia
Edibility Rating  
Medicinal Rating  
Care
Fully Hardy Moist Soil Semi-shade

Summary       
Form: Irregular or sprawling.

Physical Characteristics       
 icon of manicon of fern
Adiantum pedatum is a FERN growing to 0.5 m (1ft 8in) by 0.5 m (1ft 8in) at a slow rate.
It is hardy to zone 3. The seeds ripen from Aug to October.

USDA hardiness zone : 4-9


Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland). It prefers moist soil.

Adiantum pedatum Northern Maidenhair,American Maidenhair  Fern


http://en.wikipedia.org/wiki/User_talk:Wsiegmund
Adiantum pedatum Northern Maidenhair,American Maidenhair  Fern
http://en.wikipedia.org/wiki/User_talk:Wsiegmund
   
Habitats       
Woodland Garden Dappled Shade; Shady Edge; Ground Cover;
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.

Antirheumatic;  Astringent;  Demulcent;  Emmenagogue;  Expectorant;  Febrifuge;  Haemostatic;  Pectoral;  Tonic.

The whole plant is considered to be antirheumatic, astringent, demulcent, emmenagogue, expectorant, febrifuge, haemostatic, pectoral and tonic[172, 222, 240]. A tea or syrup is used in the treatment of nasal congestion, asthma, sore throats etc[222]. A decoction of the root was massaged into rheumatic joints[257]. The N. American Indians chewed the fronds and then applied them to wounds to stop bleeding[213]. A strong infusion of the whole plant was has been used as an emetic in the treatment of ague and fevers[257]. This plant was highly valued as a medicinal plant in the 19th century and merits scientific investigation[222].
Other Uses
Basketry;  Hair;  Lining.

The stipe of the plant is used as an ornament in basketry[172, 157]. The leaves can be used as a lining for carrying or storing fruits in baskets and on racks[257]. The plant is used as a hair conditioner[172]. The stems have been used as a hair wash to make the hair shiny[222]. Plants can be used for ground cover when planted about 30cm apart either way, they form a slowly spreading clump[208].
Cultivation details                                         
Landscape Uses:Container, Foundation, Ground cover, Massing, Rock garden, Woodland garden. Easily grown in a cool moist shady position[1, 187]. Requires an abundance of moisture in the air and soil[1]. Prefers an alkaline soil[200]. Requires an acid soil according to another report. A very ornamental plant[1], it does not always succeed outdoors in Britain[1]. It probably prefers to be covered in snow overwinter - could a mulch help[1]? This species is often divided into three separate species by botanists - the type species is found in eastern N. America, A. aleuticum is found in western N. America and a third species is found in eastern Asia[270]. Members of this genus are rarely if ever troubled by browsing deer[233]. Plants have a slowly-increasing rootstock[233]. Special Features:Attractive foliage, North American native, Naturalizing, Wetlands plant, There are no flowers or blooms.
                                                                                 
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. Pot on small clumps of plantlets as soon as they are large enough to handle and keep them humid until they are well established. Do not plant outside until the ferns are at least 2 years old and then only in a very well sheltered position. Division in spring or autumn.
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Expert comment                                         
 
      
Author                                         
L.
                                                                                 
Botanical References                                         
200235270
                                                                                 
Links / References                                         

[1]F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).
[157]Wrigley. J. W. and Fagg. M. Australian Native Plants.
A lovely book, written in order to encourage Australian gardeners to grow their native plants. A little bit of information for the plant project.
[172]Schofield. J. J. Discovering Wild Plants - Alaska, W. Canada and the Northwest.
A nice guide to some useful plants in that area.
[187]Phillips. R. & Rix. M. Perennials Volumes 1 and 2.
Photographs of over 3,000 species and cultivars of ornamental plants together with brief cultivation notes, details of habitat etc.
[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.
[208]Thomas. G. S. Plants for Ground Cover
An excellent detailled book on the subject, very comprehensive.
[213]Weiner. M. A. Earth Medicine, Earth Food.
A nice book to read though it is difficult to look up individual plants since the book is divided into separate sections dealing with the different medicinal uses plus a section on edible plants. Common names are used instead of botanical.
[222]Foster. S. & Duke. J. A. A Field Guide to Medicinal Plants. Eastern and Central N. America.
A concise book dealing with almost 500 species. A line drawing of each plant is included plus colour photographs of about 100 species. Very good as a field guide, it only gives brief details about the plants medicinal properties.
[233]Thomas. G. S. Perennial Garden Plants
A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.
[240]Chopra. R. N., Nayar. S. L. and Chopra. I. C. Glossary of Indian Medicinal Plants (Including the Supplement).
Very terse details of medicinal uses of plants with a wide range of references and details of research into the plants chemistry. Not for the casual reader.
[257]Moerman. D. Native American Ethnobotany
Very comprehensive but terse guide to the native uses of plants. Excellent bibliography, fully referenced to each plant, giving a pathway to further information. Not for the casual reader.
[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.

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Subject : Adiantum pedatum  
             

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