Chris Gomersall / 2020VISION / Seven spot ladybird (Coccinella septempunctata) on Black knapweed (Centaurea nigra) flower at RSPB's Hope Farm Reserve, Cambridgeshire, England, UK, July
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Nick Garbutt / Common knapweed (Centaurea nigra), close up. North Tyrol, Austria, June.
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Nick Garbutt / Common knapweed (Centaurea nigra) in ancient alpine meadow with hut. in distance, North Tyrol, Austria. June 2018.
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Nick Upton / Colony of Large knapweed aphids (Uroleucon jaceae) feeding on Black / Common knapweed (Centaurea nigra) stem, Mellis Common, Suffolk, UK May.
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Phil Savoie / Six spot burnet moth (Zygaena filipendulae) on Black knapweed (Centaurea nigra) Pentwyn farm SSSI, Gwent Wildlife Trust, Monmouthshire Wales UK, July.
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Andy Sands / Chalkhill blue butterfly (Polyommatus coridon) male feeding on flower of Knapweed (Centaurea nigra), Hertfordshire, England, UK August
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Phil Savoie / Six spot burnet moth (Zygaena filipendulae) in flight over grass meadow with flowering Black knapweed (Centaurea nigra), Cats ear (Hypochaens radicata), Common spotted Orchid (Dactylorhiza fuchsii) f...
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Phil Savoie / Six spot burnet moth (Zygaena filipendulae) in flight over meadow with flowering Black knapweed (Centaurea nigra), Cats ear (Hypochaens radicata), Common spotted Orchid (Dactylorhiza fuchsii) flowers...
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Phil Savoie / Grass meadow with flowering Black knapweed (Centaurea nigra), Cats ear (Hypochaens radicata), Common spotted orchid (Dactylorhiza fuchsii), flowers, SSSI, Pentwyn Farm Gwent Wildlife Trust, Monmouths...
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Ernie Janes / Wild flowers including Ladies bedstraw (Galium verun) Knapweed (Centaurea nigra) and Field scabious (Knautia arvensis) in hay meadow, Wensum Valley, Norfolk, England, UK, July.
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Sue Daly / Common knapweed (Centaurea nigra) Sark, British Channel islands, September.
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Sue Daly / Common knapweed (Centaurea nigra) Sark, British Channel islands, September.
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Terry Whittaker / Humming-bird hawk-moth (Macroglossum stellatarum) feeding on Common knapweed (Centaurea nigra). Chalk cliffs, Kent. July
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Terry Whittaker / Humming-bird hawk-moth (Macroglossum stellatarum) feeding on Common knapweed (Centaurea nigra). Chalk cliffs, Kent. July
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Terry Whittaker / Common knapweed (Centaurea nigra). Chalk cliffs, Kent. July
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Terry Whittaker / Common knapweed (Centaurea nigra) on chalk cliffs, Kent. July
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Alan Williams / Sweat bee (Halictus rubicundus) feeding on Knapweed (Centaurea nigra) flower in meadow Cheshire, UK, August.
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Alan Williams / Rose-spotted plant bug (Calocoris roseomaculatus) on Knapweed (Centaurea nigra) on grassland, North Wales, UK. September.
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Nick Upton / Meadow brown butterfly (Maniola jurtina) sunning on Common knapweed (Centaurea nigra) in a perennial wildflower meadow planted on an urban common by Bristol University's Urban Pollinators project, Hor...
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Nick Upton / Blue mason bee (Osmia leaiana) nectaring on Common knapweed (Centaurea nigra) in a perennial wildflower meadow planted on an urban common by Bristol University's Urban Pollinators project, Horfield, B...
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Nick Upton / Early bumblebee (Bombus pratorum) nectaring on Common knapweed (Centaurea nigra) in a perennial wildflower meadow planted on an urban common by Bristol University's Urban Pollinators project, Horfield...
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Nick Upton / Six spot burnet moths (Zygaena filipendulae) mating on Common knapweed (Centaurea nigra) in a perennial wildflower meadow planted on an urban common by Bristol University's Urban Pollinators project,...
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Nick Upton / Six spot burnet moths (Zygaena filipendulae) mating on Common knapweed (Centaurea nigra) in a perennial wildflower meadow planted on an urban common by Bristol University's Urban Pollinators project,...
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Rod Williams / Thick headed fly (Physocephala rufipes) feeding on Black knapweed (Centaurea nigra) flower, Sutcliffe Park, Eltham, London, England, June.
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Rod Williams / Six-spot burnet moth (Zygaena filipendulae) on Black knapweed (Centaurea nigra) flower, Sutcliffe Park Nature Reserve, Eltham, London, England, July.
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Alan Williams / Hoverfly (Epistrophe grossulariae) feeding on Knapweed (Centaurea nigra) in meadow, Cheshire, UK, August.
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Alan Williams / Hoverfly (Sericomyia silentis) on Knapweed (Centaurea nigra) flower in meadow Cheshire, UK, September.
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Will Watson / Vestal cuckoo bumblebee (Bombus vestalis) feeding on Knapweed (Centaurea nigra), Herefordshire, England, UK, June.
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Will Watson / Common carder bee (Bombus pascuorum) male on Knapweed (Centaurea nigra), Worcestershire, England, UK, August.
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Rod Williams / Black / Lesser knapweed (Centaurea nigra) flowers, Sutcliffe Park Nature Reserve, Eltham, London, England, June.
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Alan Williams / Hoverfly (Sericomyia superbens) feeding on Knapweed (Centaurea nigra) at forest edge, North Wales, UK, September.
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Alan Williams / Hoverfly (Sericomyia silentis) feeding on Knapweed (Centaurea nigra) fllower on roadside verge, North Wales, UK, August.
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Alan Williams / Hoverfly (Sericomyia superbens) feeding on Knapweed (Centaurea nigra) at forest edge, North Wales, UK, September.
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Alan Williams / Small skipper (Thymelicus sylvestris) feeding on Knapweed (Centaurea nigra) in meadow. Cheshire, UK, August.
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Rod Williams / Common Knapweed (Centaurea nigra) Ladywell Fields, Lewisham, South East London, England, UK, July
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Alex Hyde / Common / Black Knapweed (Centaurea nigra) Peak District National Park, Derbyshire, UK. August.
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Alex Hyde / Common / Black Knapweed (Centaurea nigra) growing in disused limestone quarry. Peak District National Park, Derbyshire, UK. August.
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Alex Hyde / Hedge Brown butterfly (Pyronia tithonus) resting on Common Knapweed (Centaurea nigra) Peak District National Park, Derbyshire, UK. August.
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Ernie Janes / RF- Ox-eye Daisies (Leucantemum vulgare) and Common Knapweed (Centaurea nigra) in hay meadow, Wensum Valley, Norfolk, UK. July. (This image may be licensed either as rights managed or royalty free.)
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Ernie Janes / Ox-eye Daisies (Leucantemum vulgare) and Common Knapweed (Centaurea nigra) in hay meadow, Wensum Valley, Norfolk, UK July
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Ernie Janes / Wild flowers in traditional hay meadow, Wensum Valley, Norfolk, UK July
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Chris Gomersall / 2020VISION / Buff-tailed bumble bee (Bombus terrestris) feeing on nectar from a Black knapweed flower (Centaurea nigra) at RSPB's Hope Farm Reserve, Cambridgeshire, England, UK, July
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Chris Gomersall / 2020VISION / Male Small skipper butterfly (Thymelicus sylvestris) feeding on nectar from Black knapweed (Centaurea nigra) flower at RSPB's Hope Farm Reserve, Cambridgeshire, England, UK, July
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Chris Gomersall / 2020VISION / Buff-tailed bumble bee (Bombus terrestris) feeing on nectar from a black knapweed flower (Centaurea nigra) at RSPB's Hope Farm Reserve, Cambridgeshire, England, UK, July
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Russell Cooper / Six Spot Burnet moth (Zygaena filipendulae) resting on Knapweed flower (Centaurea nigra) Morden, South London. UK, June
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Stephen Dalton / Knapweed (Centaurea nigra) UK
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David Kjaer / Lesser / Black Knapweed {Centaurea nigra} in flower, Wiltshire, UK.
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Ross Hoddinott / Crab spider (Xysticus cristatus) on Common knapweed (Centaurea nigra) with bumble bee (Bombus terrestris). Dunsdon nature reserve, Devon, UK
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Ross Hoddinott / Lesser / Black knapweed {Centaurea nigra} UK
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Kim Taylor / Marbled white butterfly (Melanargia galathea) attempts to dislodge another Marbled white from a Lesser knapweed flower (Centaurea nigra). The animal fails and then returns to the other flower to feed....
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Kim Taylor / Marbled white butterfly (Melanargia galathea) attacking another Marbled white on a Lesser knapweed (Centaurea nigra) flower. The aggressor manages to dislodge the butterfly, causing it to flee. Ringst...
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Neil Aldridge / Red-tailed bumblebee (Bombus lapidarius) flying between Knapweed (Centaurea nigra) flowers and feeding as Devil's bit scabious (Succisa pratensis) and Ox-eye daisy (Leucanthemum vulgare) sway in breez...
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Neil Aldridge / Breeze causing Devil's bit scabious (Succisa pratensis), Ox-eye daisy (Leucanthemum vulgare) and Knapweed (Centaurea nigra) flowers to sway in meadow, Wiltshire, UK.
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Neil Aldridge / Red-tailed bumblebee (Bombus lapidarius) flying between Knapweed (Centaurea nigra) flowers and feeding as Devil's bit scabious (Succisa pratensis) and Ox-eye daisy (Leucanthemum vulgare) sway in the b...
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Neil Aldridge / Panning right reveals petals of Knapweed (Centaurea nigra) flower, Wiltshire, UK.
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Neil Aldridge / Honeybee (Apis mellifera) feeding on nectar from Knapweed (Centaurea nigra) flower, taking flight and leaving frame, meadow, Wiltshire, UK.
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Guy Edwardes / Brimstone butterfly (Gonepteryx rhamni) feeding on Common knapweed (Centaurea nigra), Triglav National Park, Slovenia. June.
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Guy Edwardes / Silver-washed fritillary butterfly (Argynnis paphia) feeding on Common knapweed (Centaurea nigra), Triglav National Park, Slovenia. June.
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Guy Edwardes / Brimstone butterfly (Gonepteryx rhamni) feeding on Common knapweed (Centaurea nigra), Triglav National Park, Slovenia. June.
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Nigel Cattlin / Hardhead / Common knapweed (Centaurea nigra) purple flowering plant in dry alkaline grassland, Berkshire, UK. July.
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SCOTLAND: The Big Picture / Knapweed (Centaurea nigra) and field scabious flowers growing in garden with house in background, Ballinlaggan, Scotland, UK. August, 2020. Property released.
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SCOTLAND: The Big Picture / Purple loosestrife (Lythrum salicari), Knapweed (Centaurea nigra) and Rosebay willowherb (Chamaenerion angustifolium) growing around garden pond, Ballinlaggan, Scotland, UK. August.
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SCOTLAND: The Big Picture / Purple loosestrife (Lythrum salicari), Knapweed (Centaurea nigra) and Rosebay willowherb (Chamaenerion angustifolium) growing around garden pond, Ballinlaggan, Scotland, UK. August.
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SCOTLAND: The Big Picture / Rotten log and wildflowers, Purple loosestrife (Lythrum salicari), Knapweed (Centaurea nigra) and Rosebay willowherb (Chamaenerion angustifolium) growing around garden pond, Ballinlaggan, Scotland, UK...
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Linda Pitkin / Meadow with flowering Common knapweed (Centaurea nigra), rayed form, Nutfield Marsh Nature Reserve, Surrey, England. July.
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Linda Pitkin / Common knapweed (Centaurea nigra), rayed form, in flower, Nutfield Marsh nature reserve, Surrey, England, July.
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Nick Upton / Bee beetle (Trichius fasciatus) a bumblebee mimicking beetle, visiting a Common knapweed (Centaurea nigra) flower, Kenfig NNR, Glamorgan, Wales, UK, June.
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Neil Aldridge / Six-spot burnet moth (Zygaena filipendulae) feeding on a knapweed (Centaurea nigra) flower in a limestone meadow, Cotswolds, United Kingdom, June.
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Neil Aldridge / Six-spot burnet moth (Zygaena filipendulae) feeding on a knapweed (Centaurea nigra) flower in a limestone meadow, Cotswolds, United Kingdom, June.
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Edwin Giesbers / Six-spot burnet moth (Zygaena filipendulae), two pairs mating on Knapweed (Centaurea nigra). The Netherlands. June.
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Linda Pitkin / Common knapweed (Centaurea nigra), white variety Runnymede, Surrey, England, July.
