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Asplenium ruta-muraria - L.

Common Name Wall Rue, Lance asplenium
Family Polypodiaceae
USDA hardiness 5-9
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 Old walls and basic rocks in hilly areas[7, 17].
Range Most of Europe, including Britain, Mediterranean, N. and S. Asia to the Himalayas, E. North America.
Edibility Rating    (0 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Care
Fully Hardy Moist Soil Semi-shade
Asplenium ruta-muraria Wall Rue, Lance asplenium


http://commons.wikimedia.org/wiki/File:Asplenium_ruta_muraria_nf_cleaned.jpg
Asplenium ruta-muraria Wall Rue, Lance asplenium
http://commons.wikimedia.org/wiki/User:Hagen_Graebner

 

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Summary


Physical Characteristics

 icon of manicon of fern
Asplenium ruta-muraria is an evergreen Fern growing to 0.1 m (0ft 4in) by 0.2 m (0ft 8in) at a slow rate.
It is hardy to zone (UK) 6. It is in leaf all year, and the seeds ripen from July to October.
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: basic (alkaline) soils and can grow in very alkaline soils.
It can grow in semi-shade (light woodland). It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Habitats

 North Wall. In. East Wall. In. West Wall. In.

Edible Uses

None known

Medicinal Uses

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Astringent  Deobstruent  Emmenagogue  Expectorant  Ophthalmic

The fronds are astringent, deobstruent, emmenagogue, expectorant and ophthalmic[4, 7, 240]. A distilled water made from the fronds has proved of benefit in the treatment of many eye complaints[7]. The plant is also considered to be useful in the treatment of coughs and ruptures in children[4]. It was at one time used as a herbal remedy for rickets[219] and its tannin content renders it suitable for stopping bleeding from small wounds[7]. The fronds are harvested in late spring and dried for later use[7].

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Other Uses

None known

Cultivation details

Requires a well-drained position and lots of old mortar rubble in the soil[1]. Requires a humid atmosphere and some shade[28, 31]. A good plant for growing on a shady part of an old dry-stone or brick wall[K], also succeeding in full sun[219]. A very ornamental fern[1], it is very tough but slow to establish[219]. Members of this genus are rarely if ever troubled by browsing deer[233].

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Propagation

Spores - best sown as soon as they are 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 spring[1]. Spring sown spores germinate in 1 - 3 months at 15°c[134]. Pot on small clumps of plantlets into individual pots as soon as they are large enough to handle and grow them on in light shade in a cold frame or greenhouse. Keep the plants humid until they are well established. Once the plants are 15cm or more tall, plant them out into their permanent positions in the spring. Division in spring.

Other Names

If available other names are mentioned here

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 NameEdibility RatingMedicinal Rating
Asplenium adiantum-nigrumBlack Spleenwort02
Asplenium bulbiferumHen And Chicken Fern, Parsley Fern, Mother Spleenwort10
Asplenium ceterachScale Fern02
Asplenium scolopendriumHart's Tongue Fern02
Asplenium trichomanesMaidenhair Spleenwort, Dense spleenwort, Toothed spleenwort, Brightgreen spleenwort11
Athyrium filix-feminaLady Fern, Common ladyfern, Subarctic ladyfern, Asplenium ladyfern, Southern Lady Fern, Tatting Fer12

 

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Botanical References

17200

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