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Wild flower in the field

A photo of Lycoris

European Elder or European Black Elderberry, (Sambucus nigra), flowering, Bavaria, Germany

japanese knotweed flowering, invasive weed ,classified as controlled waste under the Environmental Protection Act 1990, it grows from tiny fragments of rhizomes the underground network of stems and roots , it spreads easily and can work it's way through concrete and tarmac , its roots can go down up to 3m deep. Here in the UK the having this weed in your garden can lower the value of your house by several thousands.

Park in bloom

Field of blooming fireweed in Alaska,USA.

Persicaria longiseta is a species of flowering plant in the knotweed family known by the common names Oriental lady's thumb, bristly lady's thumb, Asiatic smartweed, long-bristled smartweed, low smartweed, Asiatic waterpepper, bristled knotweed, bunchy knotweed, and tufted knotweed.

$Short to medium, erect to rather sprawling, hairless, branched annual. Leaves lanceolate, tapered at the base, often with a large blackish blotch; ochrea brown, shortly fringed. Flowers crowded, in stout short spikes, pale to bright pink. Nut black, glossy.\nHabitat: Waste, bare and cultivated land, railway embankments, often close to water especially along rivers, streams and canals, sometimes abundant on heavy non-calcareous soils.\nFlowering Season: June-October.\nDistribution: Throughout Europe, except Spitsbergen.\n\nThis is a common Species in the Netherlands.$

Green leaves and white flowers of catalpa tree in June

flowering coffee tree

Inside view of Kaziranga National Park of northeast Indian state of Assam. Watchtower of Kaziranga National Park.

Beautiful colorful spider flowers blossom in the field

Eupatorium cannabinum inflorescences on green grass background

Close-up: Beautiful contrast between wheat field and Polygonaceae plants.

Waxy clinch perennial plant Reynoutria japonica, green perennial strongly branching perennial can reach a height of up to 3 m

Flowering catalpa

Blossoms of the Japanese Knotweed (Fallopia japonica), an invasive plant species in Europe.

Purple flowers of Origanum Vulgare (oregano, wild marjoram, English marjoram, grove marjoram, pot marjoram, wintersweet)

branches of a flowering bush of white and purple lilac close-up, background with blooming lilac

Sambucus nigra. Common names include elder, elderberry, black elder, European elder, European elderberry and European black elderberry.

Bright pink flowers of himalayan balsam plant growing near the water. Beautiful Summer scenery of Latvia, Northern Europe.

Japanese knotweed ((Fallopia japonica)) was introduced to Britain in the 19th century as an ornamental plant, and won a gold medal at a prestigious flower show under its previous name of (Polygonum cuspidatum). However, once planted, this knotweed spread and refused to go away. Beyond the Far East, its homeland, Japanese knotweed has no natural biological enemies to check its spread. On the other hand, in Japan, at least 30 species of insect and 6 species of fungi live on the plant and restrict its spread. In 2004, a UK government review of non-native species stated the costs involved in eradication would be at least GBP1.56bn. Some other ecology-related photographs: .

Large green leaves of white flowering Japanese knotweed growing in park

Sacred basil or Thai basil in garden

The pigeon pea plant with blue shy

Field full of red blooming Knotweed or Persicaria amplexicaulis Atrosanguinea.

Close up of Himalayan Balsam, also called Impatiens glandulifera or springkraut

Hydrangea paniculata creates border in Latvian garden

Prunus laurocerasus in bloom

Clerodendrum bungei, also called Rose Glory Bower, is deciduous shrub with rounded terminal clusters, packed with small, scented rose-pink flowers from mid-summer to autumn.

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