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Giant Butterbur (Petasites japonicus)
by Anne Burgess
for square NJ2758
This is one of the three species of Butterbur that occur in this area. It is... (more)
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Verbena b., Birmingham Botanical Gardens
by Robin Stott
for square SP0485
The long border beside Loudon Terrace has been planted for the summer with... (more)
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Ailanthus altissima
by Bob Harvey
for square TF0820
A Tree of Heaven, growing in a marginally tended garden (the homeowner is busy... (more)
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Track on Lower Hyde Heath
by Nigel Mykura
geograph for square SY8791
This shows three of the dominant plants on the heath, gorse or furze,... (more)
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Collapsing boathouses, Alloch Dam
by Alan O'Dowd
geograph for square NS6477
These seem to have been associated with fishing on this pond, but are now in an... (more)
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White Butterbur (Petasites albus)
by Anne Burgess
for square NJ3358
A very common but not a welcome sight, White Butterbur is an invasive non-native... (more)
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White Butterbur (Petasites albus)
by Anne Burgess
for square NJ3357
A very common but not a welcome sight, White Butterbur is an invasive non-native... (more)
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Wild garlic and Japanese knotweed
by Bill Boaden
geograph for square SD7916
On the fringes of Nuttall Park. Both are technically invasive species, though... (more)
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Valley at Pinhay in the Undercliff
by David Smith
geograph for square SY3190
The dark green trees are holm oaks which are an invasive species in the nature... (more)
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Yellow Perfoliate Alexanders (Smyrnium perfoliatum)
by Anne Burgess
for square TQ1776
According to a nearby information board, this is a non-native invasive species.... (more)
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American Skunk Cabbage in Glen Ralloch
by M J Richardson
for square NR8568
Lysichiton americanus (American Skunk Cabbage) is an invasive, non-native... (more)
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Overgrown Track
by valenta
geograph for square NJ1662
Like so many country estates in Scotland, they are gradually being invaded by... (more)
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Floating pennywort, west bank, River Weaver
by Christine Johnstone
geograph for square SJ6574
An invasive plant introduced in the UK in the 1980s. It grows very rapidly in... (more)
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Track on Lower Hyde Heath
by Nigel Mykura
geograph for square SY8891
This track was very unusual in that it had very high rhododendron bushes lining... (more)
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Dew pond under restoration near Gritts Farm
by Christine Johnstone
geograph for square SE8560
The pond is being restored as part of the Wolds Water project. It is currently... (more)
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Japanese Knotweed at Ardchattan
by M J Richardson
geograph for square NM9435
Part of a large patch of this invasive alien plant by Loch Etive.
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Small island in Loch Etive
by M J Richardson
geograph for square NM9535
At Ardachy. Looking between two large clumps of the invasive Japanese Knotweed... (more)
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Loch Etive roadside
by M J Richardson
geograph for square NM9436
With a good growth of the invasive Japanese knotweed [Fallopia japonica].
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Bracken, Birch and Rowan
by M J Richardson
geograph for square NM4752
Above Lochs Carnain an Amais and Meadhoin. The lighter green patch between... (more)
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Looking across Loch Gilp
by M J Richardson
geograph for square NR8686
From the eastern side. With young plants of the Giant Hogweed, an invasive alien... (more)
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Fallen tree with fungus and moss
by M J Richardson
for square NT2470
The log has obviously been down sometime, and is well colonised by mosses and... (more)
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Caution - Pirri-pirri bur
by M J Richardson
for square NU0943
Information from Natural England about the alien and invasive plant [Acaena... (more)
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Two invasive aliens by the Braid Burn
by M J Richardson
for square NT2670
White Butterbur [Petasites albus] coming into flower amongst the leaves of... (more)
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Narrowboat heading downstream, Weaver Navigation
by Christine Johnstone
geograph for square SJ6574
South of Anderton Nature Park.
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Woodland in Gleann Bhaidseachan
by M J Richardson
geograph for square NR6489
Mostly birch, some pine and invasive Rhododendron ponticum.
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Giant Hogweed at Gogarburn
by M J Richardson
geograph for square NT1672
A vast forest of the stuff [Heracleum mantegazzianum] by the tram line at... (more)
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Woodland edge in Glen Lussa
by M J Richardson
geograph for square NR6489
Some old pine, birch and rowan. The open boggy grassland is being invaded by... (more)
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American skunk-cabbage in the woods below Edgbaston Pool
by Phil Champion
geograph for square SP0583
In late March the air was full of the pungent aroma of this plant. Skunk-cabbage... (more)
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Lesser Glory-of-the-Snow (Scilla sardensis)
by Anne Burgess
for square NJ2756
This is one of two very similar species of Scilla known to gardeners as... (more)
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Dyffryn Dyfi / Dyfi Valley
by Ian Medcalf
geograph for square SN7299
Yr hen Himalayan Balsam fondigrybwll / The dreaded Himalayan Balsam.
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Box-tree moth caterpillars
by Robin Drayton
for square ST3086
These caterpillars have decimated all the small Box shrubs nearby.
See... (more)
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Spring Snowflake (Leucojum vernum)
by Anne Burgess
for square NJ2756
This is related to Snowdrops, and prefers similar habitats. It is a garden... (more)
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Speed limit signs, Dundee
by Richard Webb
for square NO4130
On the railway leaving Dundee for Aberdeen. There is obviously a giant hogweed... (more)
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Footbridge over the Irwell
by Bill Boaden
geograph for square SD7806
The river is fairly full following recent unseasonal rain. There is a healthy... (more)
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Giant Hogweed flourishing by the river, Clyde Street, Glasgow
by Robin Stott
for square NS5964
A typical situation for Heracleum mantegazzianum, but unexpected in a city.
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Sand dunes on Lindisfarne
by M J Richardson
geograph for square NU0943
The path leads to a large area of dunes called The Snook. The notice refers to... (more)
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Giant Hogweed meets its end in Brindley's field, southeast Warwick
by Robin Stott
geograph for square SP2965
Worryingly, Giant Hogweed (Heracleum mantegazzianum) has appeared in this... (more)
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Woodland in Gleann Bhaidseachan
by M J Richardson
geograph for square NR6489
Mostly birch, but Rhododendron ponticum taking over, on the slopes to the west... (more)
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