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Polygonum alpinum
  • Alpine Knotweed

a perennial member of the Polygonum genus in the family Polygonaceae.

Niche
  • Unknown
    Unknown
    The ecosystem niches for this plant are unknown. Do you know them? Click the edit button to add them!
Functions
  • None
    None
    There are no functions defined for this plant. Do you know of some? Click the edit button to add them!
Light
  • Full sun
    Full sun
    The amount of sun exposure that a plant prefers in ideal conditions.
    Key
  • light shade
    Light shade
    The amount of shade a plant will tolerate without adverse health affects.
    Key
Water
  • Water Requirementsmoderate
    Moderate
    The amount of water a plant needs for healthy growth, relative to other plants.
    Key
Soil
  • acid,neutral,alkaline
    Unknown
    The PH range (acidity or alkilinity) of the growth medium ideal for healthy nutrient absorbtion.
    Key
  • Sandy to Clay
    The soil texture this plant prefers for optimal growth.
    Key
Cold & Heat
  • 5
    Zone 5
    The USDA Hardiness scale assigns plants a number from 1 to 12 representing the minimum temperature a plant can survive.
    Key
    0< -53.9ºC< -65ºF
    1-51.1ºC-60ºF
    2-45.6ºC-50F
    3-40ºC-40ºF
    4-34.4ºC-30ºF
    5-28.9ºC-20ºF
    6-23.3ºC-10ºF
    7-17.8ºC0ºF
    8-12.2C10ºF
    9-6.7ºC20ºF
    10-1.1ºC30ºF
    114.4ºC40ºF
    12> 10ºC> 5ºF
  • ?
    Unknown
    The AHS Heat scale assigns plants a number from 1 to 12 representing the number of days per year a plant requires a temperature exceeding 30ºC (86ºF).
    Key
    11
    21 - 7
    38 - 14
    415 - 30
    531 - 45
    646 - 60
    761 - 90
    891 - 120
    9121 - 150
    10151 - 180
    11181 - 210
    12181 - 210
Polygonum alpinum has 0 edible uses listed
Polygonum alpinum has 0 medicinal uses listed

Uses

Toxic parts

Although no specific mention has been made for this species, there have been reports that some members of this genus can cause photosensitivity in susceptible people. Many species also contain oxalic acid (the distinctive lemony flavour of sorrel) - whilst not toxic this substance can bind up other minerals making them unavailable to the body and leading to mineral deficiency. Having said that, a number of common foods such as sorrel and rhubarb contain oxalic acid and the leaves of most members of this genus are nutritious and beneficial to eat in moderate quantities. Cooking the leaves will reduce their content of oxalic acid. People with a tendency to rheumatism, arthritis, gout, kidney stones or hyperacidity should take especial caution if including this plant in their diet since it can aggravate their condition[1].

Edible uses

Notes

Leaves - raw or cooked[2][3]. They have an acid flavour and can be used as a sorrel substitute[4]. The chopped leaves and stems have been added to a thick pudding of flour and sugar then eaten[5].

Leaf stems - raw or cooked. An acid flavour, they can be cut into sections and used like rhubarb (Rheum spp)[5]. The juice from the plant has been sweetened and used as a refreshing drink[5].

Seed - raw or cooked. It is rather small and fiddly to utilize.

Unknown part

Drink

Leaves

Unknown use

Seed

Unknown use

Stem

Unknown use

Material uses

There are no material uses listed for Polygonum alpinum.

Medicinal uses(Warning!)

The whole plant is astringent[4]. The raw roots and stem bases have been chewed as a treatment for coughs and colds[5].

Unknown part

Astringent
Pectoral

Ecology

Ecosystem niche/layer

Ecological Functions

Nothing listed.

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - sow spring in a cold frame. Germination is usually free and easy. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer if they have reached sufficient size. If not, overwinter them in a cold frame and plant them out the following spring after the last expected frosts. Division in spring or autumn. Very easy, larger divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer.

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



Cultivation

Succeeds in an ordinary garden soil[6] but prefers a moisture retentive not too fertile soil in sun or part shade[7]. Grows well near water[6]. Repays generous treatment[6].

Plants seem to be immune to the predations of rabbits[8].

Plants can be invasive but they are easily controlled by spading around the clump[7].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Polygonum alpinum. 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 Polygonum alpinum.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Polygonum alpinum
Genus
Polygonum
Family
Polygonaceae
Imported References
Edible uses
[2][3][4][5]
Medicinal uses
[4][5]
Material uses & Functions
Botanic
[4][7]
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
5
Heat Zone
?
Water
moderate
Sun
full sun
Shade
light shade
Soil PH
acid, neutral, alkaline
Soil Texture
sandy, loamy, clay
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
    None listed.
    Root Zone Tendancy
    None listed.
    Life
    Deciduous or Evergreen
    ?
    Herbaceous or Woody
    ?
    Life Cycle
    perennial
    Growth Rate
    ?
    Mature Size
    1 x 1 meters
    Fertility
    ?
    Pollinators
    Insects
    Flower Colour
    ?
    Flower Type
    hermaphrodite











    References

    1. ? Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (1995-00-00)
    2. ? 2.02.1 Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications ISBN 0-486-20459-6 (1972-00-00)
    3. ? 3.03.1 Singh. Dr. G. and Kachroo. Prof. Dr. P. Forest Flora of Srinagar. Bishen Singh Mahendra Pal Singh (1976-00-00)
    4. ? 4.04.14.24.34.4 Komarov. V. L. Flora of the USSR. Israel Program for Scientific Translation (1968-00-00)
    5. ? 5.05.15.25.35.45.5 Moerman. D. Native American Ethnobotany Timber Press. Oregon. ISBN 0-88192-453-9 (1998-00-00)
    6. ? 6.06.16.2 F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
    7. ? 7.07.17.2 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    8. ? Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. ISBN 0 460 86048 8 (1990-00-00)


    Retrieved from "https://practicalplants.org/w/index.php?title=Polygonum_alpinum&oldid=79566"
    Facts about "Polygonum alpinum"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyPolygonaceae +
    Belongs to genusPolygonum +
    Has binomial namePolygonum alpinum +
    Has common nameAlpine Knotweed +
    Has drought toleranceIntolerant +
    Has edible partUnknown part +, Leaves +, Seed + and Stem +
    Has edible useDrink + and Unknown use +
    Has fertility typeInsects +
    Has flowers of typeHermaphrodite +
    Has hardiness zone5 +
    Has lifecycle typePerennial +
    Has mature height1 +
    Has mature width1 +
    Has medicinal partUnknown part +
    Has medicinal useAstringent + and Pectoral +
    Has search namepolygonum alpinum + and alpine knotweed +
    Has shade toleranceLight shade +
    Has soil ph preferenceAcid +, Neutral + and Alkaline +
    Has soil texture preferenceSandy +, Loamy + and Clay +
    Has sun preferenceFull sun +
    Has taxonomic rankSpecies +
    Has taxonomy namePolygonum alpinum +
    Has water requirementsmoderate +
    Is taxonomy typeSpecies +
    PFAF cultivation notes migratedNo +
    PFAF edible use notes migratedNo +
    PFAF material use notes migratedYes +
    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.Polygonum alpinum +, Polygonum alpinum +, Polygonum alpinum +, Polygonum alpinum +, Polygonum alpinum + and Polygonum alpinum +