giant knotweed identification

Japanese knotweed information Identification

Know your knotweeds In addition to the common Japanese knotweed (Fallopia japonica) there is a smaller com- pact variety Fallopia japonica var compacta reaching a height of 1 metre and a Giant knot- weed (Fallopia sachalinensis) growing up to 5 metres A hybrid between Japanese knotweed and Giant knotweed Fallopia x bohemica is also found in the UK

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Understand about Japanese Knotweed Legislation in UK

Japanese Knotweed Legislation Reform of anti-social behaviour powers for Japanese knotweed What is the issue? Invasive non-native plants are those species which have been "introduced" to areas outside their normal range by humans and have the ability to spread and pose serious threats to biodiversity the economy and human health

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Japanese knotweed

Giant knotweed Giant knotweed (Fallopia sachalinensis) is larger than Japanese knotweed often reaching 4m (13 ft) in height It can be distinguished by its larger leaves and heart-shaped leaf bases Its leaves range from 5 to 30 cm (6-12 in) in length while those of Japanese knotweed

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What Does Japanese Knotweed Look Like?

Japanese Knotweed costs the UK economy an estimated 166 million per year for treatment and in property devaluations It spreads—rapidly—and it wipes out native species in its relentless progress across the land as well as posing a serious threat to building foundations and drains

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Japanese Knotweed Identification in Summer

You can also scroll down the page for more summer identification hints and tips If you suspect you have Japanese knotweed on your property contact us online for help and advice or call freephone: 0808 231 9218 Contact Wise Knotweed Solutions Tips to help Japanese Knotweed identification in summer

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Washington State Noxious Weed Control Board

Knotweed species resemble each other and as the name implies giant knotweed is much larger than the other invasive knotweeds found in Washington: Himalayan Japanese and Bohemian knotweeds If you need help with plant identification please contact your county noxious weed coordinator

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Using Japanese Knotweed for Food and Medicine

Half a gallon of fresh Japanese knotweed tincture is a perfect illustration of bioregional herbalism! This invasive is one of our primary defenses against Lyme infection—particularly fascinating as knotweed thickets provide perfect habitat for deer ticks and the white-footed mice they parasitize

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Identification

In addition to the common Japanese knotweed (Fallopia japonica) there is a smaller compact variety Fallopia japonica var compacta reaching a height of 1 metre and a Giant knotweed (Fallopia sachalinensis) growing up to 5 metres A hybrid between Japanese knotweed and Giant knotweed Fallopia x bohemica is also found in the UK

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Kill or Remove Japanese Knotweed with a SMART

Speak to us for FREE identification / FREE Site Surveys / FREE Advice Whether you are a residential customer or a developer you will be impressed by the service you will get from SMART Knotweed Services Not only can we kill or remove Japanese Knotweed but we also manage Giant Hogweed Horsetail and others

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Giant Knotweed (Invasive Plants of Maryland) iNaturalist

Botanical description: This description covers characteristics that may be relevant to fire ecology and is not meant for identification Keys for identification of giant and Japanese knotweed are available (e g [49 58 78 85 98 142]) For information on differentiating between giant Japanese and Bohemian knotweed see the following: [7 43 153]

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Japanese Knotweed – CISMA

giant knotweed (Polygonum sachalinense non-native) Note that the giant knotweed (Polygonum sachalinense) can grow taller than Japanese knotweed and has much larger leaves (up to 12″ long) The upper surface of Japanese knotweed has an extremely fine-sandpaper feel in contrast to the fine-leather feel of giant knotweed Identification Video

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Cherry Laurel

The fruit is a small cherry 1–2 cm broad turning black when ripe in early autumn can have the scent of almonds when crushed Leaves fruit and seed may cause severe discomfort to humans if ingested The seeds contained within the cherries are poisonous like the rest of the plant containing cyanogenic glycosides and amygdalin

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Knotweed Identification

Identifying Japanese knotweed Japanese knotweed or Fallopia Japonica is a member of the Buckwheat family and has various derivatives including Giant knotweed and Himalayan knotweed It was introduced to the UK in the 1800s as a garden plant and has since spread to railways riverbanks farm hedges and industrial sites

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Giant knotweed

Like other invasive plants in the top 20 for northwest Michigan giant knotweed out-competes native plants and provides little food or other habitat for wildlife Giant knotweed is problematic for infrastructure as well as it can sprout up through concrete and asphalt spread quickly and is difficult to eradicate

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Plants that look like Japanese Knotweed

How Bindweed looks similar to Japanese Knotweed With its heart-shaped leaves Bindweed may look similar to Japanese Knotweed The leaves of Bindweed also alternate along the stem and much like knotweed when it appears in spring Bindweed can cover a large area very quickly

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Giant knotweed

Giant knotweed forms tall dense thickets that shade out and displace native vegetation degrade habitat for fish and wildlife alter waterways and facilitate erosion and flooding Once established it dominates native vegetation and is a significant problem in riparian areas where stream-side tree growth is

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Knotweed biology and identification

These are the main ones we deal with •Giant knotweed (Fallopia sachalinensis) The largest knotweed very large leaves •Japanese knotweed (Fallopia japonica) Most common shorter than Bohemian or giant •Bohemian knotweed (Fallopia x bohemica) Hybrid between giant and Japanese knotweed

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Giant hogweed / RHS Gardening

Giant hogweed ( Heracleum mantegazzianum ) is a close relative of cow parsley originally from Southern Russia and Georgia It can reach over 3m (10ft) in height Although this striking plant can be attractive in certain situations most gardeners will want to eradicate it as it is potentially invasive and the sap can cause severe skin burns

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Japanese knotweed / RHS Gardening

Japanese knotweed ( Fallopia japonica ) is a weed that spreads rapidly In winter the plant dies back to ground level but by early summer the bamboo-like stems emerge from rhizomes deep underground to shoot to over 2 1m (7ft) suppressing all other plant growth Eradication requires determination as it is very hard to remove by hand or eradicate with chemicals

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Kill or Remove Japanese Knotweed with a SMART

Speak to us for FREE identification / FREE Site Surveys / FREE Advice Whether you are a residential customer or a developer you will be impressed by the service you will get from SMART Knotweed Services Not only can we kill or remove Japanese Knotweed but we also manage Giant Hogweed Horsetail and others

Get More

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