Adiantum venustum
Famille: Polypodiaceae, Genre: Adiantum
Fougère à feuilles persistantes (0.25m de haut par 0.3m de large).
Habitat
- Exposition
- Mi-ombre
- Humidité
- Humidité moyenne.
- Sol
- Tous sols. Nécessite un sol drainant.
- pH
- Sol acide ou calcaire
- Rusticité
- Zone 9
- Habitat originel
- Rock crevices and on forest slopes, 1700 - 2200 metres in Kashmir[145]. Moist, shady, rocky places in Nepal at elevations of 300 - 3,600 metres[272].
- Origine géographique
- Asie orientale - Himalaya.
Dangers connus
- 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].
Usages médicinaux
- The fronds are astringent, diuretic, emetic, emmenagogue, expectorant, resolvent and tonic[240] They are used in the treatment of headaches and scorpion stings [145, 240].
- A paste made from the rhizomes is used in Nepal to treat cuts and wounds [272].
Autres usages
- This species can be grown as a ground cover plant in a shady position[188], forming a spreading carpet of growth [208].
Culture
- Requires an abundance of moisture in the air and soil [1].
- Prefers an alkaline soil [200].
- Requires an acid soil in another report .
- Plants are quick to establish on peat banks or in rock crevices in light shade or, if the soil is not too dry, under trees [187].
- A very ornamental plant, it is nearly hardy in sheltered places in Britain, though is more normally grown in a greenhouse [1].
- Les membres de ce genre sont rarement (ou jamais) incommodés par le broutage des cerfs. [233].
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 au printemps ou à l'automne .
Calendrier
- En feuille
- 1 - 12
Pollinisation
- Auto-fertile
- Oui
Divers
- Pollution
- Non
- Autres réferences
- [200]
Réferences
[1] RHS Dictionary of Plants plus Supplement. 1956 1951.
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).
[145] Forest Flora of Srinagar. 1976.
A good flora of the western Himalayas but poorly illustrated. Some information on plant uses.
A good flora of the western Himalayas but poorly illustrated. Some information on plant uses.
[172] Discovering Wild Plants - Alaska, W. Canada and the Northwest.
A nice guide to some useful plants in that area.
A nice guide to some useful plants in that area.
[187] Perennials Volumes 1 and 2. 1991.
Photographs of over 3,000 species and cultivars of ornamental plants together with brief cultivation notes, details of habitat etc.
Photographs of over 3,000 species and cultivars of ornamental plants together with brief cultivation notes, details of habitat etc.
[200] The New RHS Dictionary of Gardening. 1992. 1992.
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
[208] Plants for Ground Cover 1990.
An excellent detailled book on the subject, very comprehensive.
An excellent detailled book on the subject, very comprehensive.
[233] Perennial Garden Plants 1990.
A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.
A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.
[240] Glossary of Indian Medicinal Plants (Including the Supplement). 1986.
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.
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.
[272] Plants and People of Nepal 2002.
Excellent book, covering over 1,500 species of useful plants from Nepal together with information on the geography and peoples of Nepal. Good descriptions of the plants with terse notes on their uses.
Excellent book, covering over 1,500 species of useful plants from Nepal together with information on the geography and peoples of Nepal. Good descriptions of the plants with terse notes on their uses.
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