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Urtica angustifolia - Fisch.
                 
Common Name
Family Urticaceae
USDA hardiness Coming soon
Known Hazards The leaves of the plants have stinging hairs, causing irritation to the skin[21, 200]. This action is neutralized by heat so the cooked leaves are perfectly safe and nutritious[200]. However, only young leaves should be used because older leaves develop gritty particles called cystoliths which act as an irritant to the kidneys[172].
Habitats Woods in mountains all over Japan[58]. Riversides and mixed montane woods, springs, rocky screes and occasionally by dwellings and in waste places[74].
Range E. Asia - China, Japan, Korea.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Moist Soil Semi-shade Full sun

Summary

Urtica angustifolia


Urtica angustifolia
   
Physical Characteristics
 icon of manicon of flower
Urtica angustifolia is a PERENNIAL growing to 1.5 m (5ft).
It is not frost tender. It is in flower from Jun to August, and the seeds ripen from Aug to October. The flowers are dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required) and are pollinated by Wind.The plant is not self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Synonyms

Habitats
Woodland Garden Sunny Edge; Dappled Shade; Shady Edge;
Edible Uses
Edible Parts: Leaves.
Edible Uses: Drink.

Young leaves - cooked[105, 177]. They make an excellent spinach or can be added to soups and stews[K]. A very nutritious food, high in vitamins and minerals. Only use the young leaves and wear stout gloves when harvesting them to prevent getting stung. Although the fresh leaves have stinging hairs, thoroughly drying or cooking them destroys these hairs. Nettle beer is brewed from the young shoots[200].
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.



None known
Other Uses
Compost;  Dye;  Fibre;  Hair;  Liquid feed;  Repellent.

A strong flax-like fibre is obtained from the stems[200]. Used for making string and cloth[1, 4, 6, 13, 36], it also makes a good quality paper[115]. It is harvested as the plant begins to die down in early autumn and is retted before the fibres are extracted[4, 99]. The following uses have been listed for U. dioica, but they are almost certainly also applicable to this species. The plant matter left over after the fibres have been extracted are a good source of biomass and have been used in the manufacture of sugar, starch, protein and ethyl alcohol[4]. An oil obtained from the seeds is used as an illuminant[4]. An essential ingredient of 'QR' herbal compost activator[32]. This is a dried and powdered mixture of several herbs that can be added to a compost heap in order to speed up bacterial activity and thus shorten the time needed to make the compost[K]. The leaves are also an excellent addition to the compost heap[12, 18, 20] and they can be soaked for 7 - 21 days in water to make a very nutritious liquid feed for plants[54]. This liquid feed is both insect repellent and a good foliar feed[14, 18, 53]. The growing plant increases the essential oil content of other nearby plants, thus making them more resistant to insect pests[18, 20, 54]. Although many different species of insects feed on nettles, flies are repelled by the plant so a bunch of freshly cut stems has been used as a repellent in food cupboards[4]. The juice of the plant, or a decoction formed by boiling the herb in a strong solution of salt, will curdle milks and thus acts as a rennet substitute[4]. This same juice, if rubbed into small seams of leaky wooden tubs, will coagulate and make the tub watertight again[4]. A hair wash is made from the infused leaves and this is used as a tonic and antidandruff treatment[172, 201]. A beautiful and permanent green dye is obtained from a decoction of the leaves and stems[4, 115]. A yellow dye is obtained from the root when boiled with alum[4, 115].
Cultivation details
We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of the country. It is closely related to U. dioica, and may be no more than an eastern variant of that species[266]. The following notes are based on the general needs of the genus. Prefers a nitrogen-rich soil[200]. The best fibre is produced when plants are grown on deep fertile soils[200]. Dioecious. Male and female plants must be grown if seed is required.
Propagation
Seed - sow spring in a cold frame, only just covering the seed. Prick out the seedlings into individual pots when they are large enough to handle, and plant them out in the summer. Division succeeds at almost any time in the growing season. Very easy, plant them straight out into their permanent positions.

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Other Names
Found In
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 :
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Latin NameCommon NameEdibility RatingMedicinal Rating
Boehmeria cylindricaFalse Nettle, Smallspike false nettle00
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Boehmeria longispica 11
Boehmeria macrophylla 00
Boehmeria nipononiveaRamie11
Boehmeria niveaRamie, Chinese Grass, Chinese Silk Plant22
Boehmeria spicata 10
Boehmeria tricuspis 11
Cecropia peltataTrumpet Tree, Snakewood, Congo pump, Wild pawpaw, Pop-a-gun33
Debregeasia edulis 21
Debregeasia hypoleuca 20
Debregeasia longifoliaWild Rhea11
Debregeasia wallichiana 00
Elatostema cuneatum 10
Elatostema dissectum 10
Elatostema laetevirens 10
Girardinia diversifoliaHimalayan Nettle22
Gonostegia hirta 02
Laportea bulbifera 30
Laportea canadensisCanadian Wood Nettle31
Laportea macrostachya 30
Musanga cecropioidesCorkwood34
Myrianthus arboreusGiant yellow mulberry, Monkeyfruit43
Oreocnide integrifoliaWild Rhea00
Parietaria judaicaPellitory Of The Wall, Spreading pellitory23
Parietaria officinalisPellitory Of The Wall, Upright pellitory23
Pourouma cecropiifoliaAmazon Grape42
Touchardia latifoliaOlona00
Urera bacciferaNettle Tree, Chichaste, Ortiga02
12
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Subject : Urtica angustifolia  

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