Lorraine Bennery / Marsh Gentian (Gentiana pneumonanthe) flower with an egg of Alcon blue butterfly (Maculinea alcon), Auvergne Volcanoes Regional Park, France, July.
Tim Laman / Ant plant (Myrmecodia sp.) with Puncak Trikora (4730 m - second highest peak in New Guinea) in the background. New Guinea. June 2010.
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Bernard Castelein / Gentian (Gentiana pneumonanthe), Klein Schietveld, Brasschaat, Belgium August
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Cyril Ruoso / Hot lips flowers (Psychotria poeppigiana) in rainforest, Sierra Nevada de Santa Marta Colombia, January.
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Nick Upton / Mountain queen / Reina del Monte (Ixanthus viscosus), a Canaries endemic, flowering on a rock face in montane laurel forest, Anaga Rural Park,Tenerife, May.
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Nick Upton / Brown-flowered wax plant / Cardoncillo gris (Ceropegia fusca), a Canaries endemic, growing among volcanic lava rocks in arid coastal scrubland, Tenerife, May.
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Nick Upton / Brown-flowered wax plant / Cardoncillo gris (Ceropegia fusca), A Canaries endemic, growing among volcanic lava rocks in arid coastal scrubland, Tenerife, May.
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Colin Varndell / Cleavers / Goose grass / Sticky willie (Galium aparine) seeds forming. Dorset, UK August
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Hanne & Jens Eriksen / Desert rose (Adenium obesum) Oman, September
Nick Upton / Bladder gentian (Gentiana utriculosa) flowering in alpine grassland, Zelengora mountain range, Sutjeska National Park, Bosnia and Herzegovina, July.
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Nick Upton / Bladder gentian (Gentiana utriculosa) flowering in alpine grassland, Zelengora mountain range, Sutjeska National Park, Bosnia and Herzegovina, July.
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Nick Upton / Bladder gentian (Gentiana utriculosa) flowering in alpine grassland, Zelengora mountain range, Sutjeska National Park, Bosnia and Herzegovina, July.
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Nick Upton / Bladder gentian (Gentiana utriculosa) flowering in alpine grassland, Zelengora mountain range, Sutjeska National Park, Bosnia and Herzegovina, July.
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Nick Upton / Great yellow gentian (Gentiana lutea ssp. symphyandra) flowering spikes on Mount Piva plateau with the mountains of Sutjeska National Park in nearby Bosnia and Herzegovina, background, near Trsa, Mont...
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Nick Upton / Great yellow gentian (Gentiana lutea ssp. symphyandra) flowering spikes on Mount Piva plateau with the mountains of Sutjeska National Park in nearby Bosnia and Herzegovina, background, near Trsa, Mont...
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Nick Upton / Great yellow gentian (Gentiana lutea ssp. symphyandra) flowering spikes on Mount Piva plateau with the mountains of Sutjeska National Park in nearby Bosnia and Herzegovina, background, near Trsa, Mont...
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Nick Upton / Great yellow gentian (Gentiana lutea ssp. symphyandra) flowering spikes on Piva plateau, near Trsa, Montenegro, July.
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Nick Upton / Great yellow gentian (Gentiana lutea ssp. symphyandra) flowering spikes on Piva plateau, near Trsa, Montenegro, July.
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Nick Upton / Bladder gentian (Gentiana utriculosa) flowering in alpine grassland, Zelengora mountain range, Sutjeska National Park, Bosnia and Herzegovina, July.
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Cyril Ruoso / Ghost plant (Voyria tenella) a saprophytic or myco-heterotroph which parasitizes fungi, Barro Colorado Island, Gatun Lake, Panama Canal, Panama.
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Cyril Ruoso / Ghost plant (Voyria tenella) a saprophytic or myco-heterotroph which parasitizes fungi, Barro Colorado Island, Gatun Lake, Panama Canal, Panama.
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Nick Upton / Common centaury (Centaurium erythraea) flowering in sandy scrubland near the coast, Lasithi, Crete, Greece, May 2013.
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Nick Upton / Oleander bushes (Nerium oleander) flowering in Zakros gorge, Sitia Nature Park, Lasithi, Crete, Greece, May 2013.
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Nick Upton / Many Oleander bushes (Nerium oleander) flowering beside stream bed in Zakros gorge, Sitia Nature Park, Lasithi, Crete, Greece, May 2013.
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Nick Upton / Oleander bushes (Nerium oleander) flowering in Zakros gorge, Sitia Nature Park, Lasithi, Crete, Greece, May 2013.
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Nick Upton / Oleander bushes (Nerium oleander) flowering in Zakros gorge, Sitia Nature Park, Lasithi, Crete, Greece, May 2013.
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Nick Upton / Landscape of Zakros gorge, also called the 'Gorge of the Dead' due to its Minoan cave burials, with many Oleander bushes (Nerium oleander) flowering beside its dried out stream bed, Kato Zakros, Sitia...
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Nick Upton / Many Oleander bushes (Nerium oleander) flowering beside stream bed in Zakros gorge, Sitia Nature Park, Lasithi, Crete, Greece, May 2013.
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Nick Upton / Soldier thistle (Picnomon / Cirse acana) growing in stony soil in Zakros gorge near an Oleander bushe (Nerium oleander), Sitia Nature Park, Lasithi, Crete, Greece.
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Nick Upton / Oleander bushes (Nerium oleander) flowering in Zakros gorge, Sitia Nature Park, Lasithi, Crete, Greece, May 2013.
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Nick Upton / Balloonplant / Bishop's balls (Ghompocarpus physocarpus) an African plant with inflated seed capsules, in a garden, Leros, Greece, August 2013.
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Mike Read / Monument plant (Frasera speciosa) Lamar Valley, Yellowstone National Park, Wyoming USA June
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Mike Read / Monument plant (Frasera speciosa) Lamar Valley, Yellowstone National Park, Wyoming USA June
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Mike Read / Fringed gentian (Gentiana crinita) beside Midway Geyser Basin, Yellowstone National Park, Wyoming USA June
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Alex Hyde / Photographer focusing on a Trumpet / Stemless Gentian (Gentiana acaulis) Nordtirol, Austrian Alps. June.
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Alex Hyde / Photographer focusing on a Trumpet / Stemless Gentian (Gentiana acaulis) Nordtirol, Austrian Alps. June.
Alex Hyde / Trumpet / Stemless Gentian flower (Gentiana acaulis) close up detail of stigma, Nordtirol, Austrian Alps. June.
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Alex Hyde / Trumpet / Stemless Gentian flower (Gentiana acaulis) looking down the middle of the flower, showing five-fold symmetry. Nordtirol, Austrian Alps. June.
Pal Hermansen / Purple gentian flower (Gentiana purpurea) by lake, Norway, September.
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Pal Hermansen / Purple gentian (Gentiana purpurea) in flower, Norway, September.
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Andy Trowbridge / Alpine Gentian flowers (Gentiana patula) Homer Tunnel, Fiordland National Park, South Island, New Zealand. February.
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Will Watson / Greater periwinkle (Vinca major var. oxyloba) in garden, Hereford City, England, UK, April. Cultivated plant.
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Doug Wechsler / Golden-backed snipe fly (Chrysopilus thoracicus) mating on Common milkweed leaf (Asclepias syriaca) Pennsylvania, USA, May.
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Doug Wechsler / Common milkweed field (Asclepias syriaca) Morris Arboretum, Pennsylvania, USA, June.
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David Pike / Yellow-wort (Blackstonia perfoliata) in flower, Green Down Nature Reserve, Somerset, England, UK, June.
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Nick Upton / Yellow-wort (Blackstonia perfoliata) with flowers closed for the night by late afternoon on a chalk grassland hillside, Wiltshire, UK, July.
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Nick Upton / Yellow-wort (Blackstonia perfoliata) flowering on chalk grassland hillside, Wiltshire, UK, July.
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Nick Upton / Yellow-wort (Blackstonia perfoliata) flowering on chalk grassland hillside, Wiltshire, UK, July.
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Nick Upton / Yellow-wort (Blackstonia perfoliata) with flowers closed for the night by late afternoon on a chalk grassland hillside, Wiltshire, UK, July.
Colin Varndell / Crosswort (Cruciata laevipes) in flower. Dorset, UK, May.
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Gary K. Smith / Dwarf periwinkle (Vinca minor) flower, on white background.
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Juan Carlos Munoz / Great yellow gentian (Gentiana lutea), Col de la Cayolle, Ubaye Valley, Vallee de l'Ubaye, Alpes Haute Provence, Provence, France, July.
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Cyril Ruoso / Woman collecting Madagascar periwinkle (Catharanthus roseus) flowers and leaves, used in herbal medicine, and containing molecules which are used in the treatment of leukemia cancer. Berenty, Madagasc...
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Cyril Ruoso / Woman collecting Madagascar periwinkle (Catharanthus roseus) flowers and leaves, used in herbal medicine, and containing molecules which are used in the treatment of leukemia. Berenty, Madagascar.
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Pascal Pittorino / Milkweed (Asclepias / Gomphocarpus fructicosus) in fruit, in botanic garden, Bandol, Var, Provence, France, March.
Enrique Lopez-Tapia / Desert rose (Adenium obesum) flowers, Lower Omo Valley. Ethiopia, November.
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Enrique Lopez-Tapia / Desert rose (Adenium obesum) flowers, Lower Omo Valley. Ethiopia, November.
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Pascal Tordeux / Star gentian (Gentiana cruciata) flowers against white background, Queyras, France, August.
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Martin Gabriel / Chiltern gentian (Gentianella germanica), Kelheim, Bavaria, Germany, September.
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Nick Upton / Common marsh bedstraw (Galium palustre) flowering in a pond among coastal dunes, Studland Heath, Dorset, UK, July.
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Nick Upton / Common marsh bedstraw (Galium palustre) flowering in a pond among coastal dunes, Studland Heath, Dorset, UK, July.
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David Kjaer / Autumn gentian (Gentianella amarella), Dorset, UK, August.
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Nick Upton / Sweet woodruff (Galium odoratum) with seed heads in woodland understorey, Nottinghamshire, UK, June.
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Dong Lei / Plant (Syncalathium / Parasyncalathium soulei) Mount Kawakarpo, Meili Snow Mountain National Park, Qinghai-Tibet Plateau, Yunnan Province, China. July
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Robert Thompson / Spring Gentian (Gentiana verna) in flower, Col du Lombardie, Mercantour National Park, Provence, France, June.
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Robert Thompson / Trumpet Gentian (Gentiana acaulis) in flower, Col du Lombardie, Mercantour National Park, Provence, France, June.
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MYN / Marko Masterl / Sweet Woodruff (Galium odoratum) in flower, Slovenia, Europe, May. meetyourneighbours.net project
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MYN / Marko Masterl / Sweet Woodruff (Galium odoratum) in flower, Slovenia, Europe, May. meetyourneighbours.net project
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Roger Powell / Corn bunting (Emberiza calandra) male landing on an Oleander shrub (Nerium oleander) in its breeding territory. Guerreiro, Castro Verde, Alentejo, Portugal, May.
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Dong Lei / Dinosaur gentian (Megacodon stylophorus) flowers, Kawakarpo Mountain, Meri Snow Mountain National Park, Yunnan Province, China.
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Dong Lei / Dinosaur gentian (Megacodon stylophorus) flowers, Kawakarpo Mountain, Meri Snow Mountain National Park, Yunnan Province, China.
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Adrian Davies / Monarch butterfly (Danaus plexippus) caterpillar on Milkweed (Asclepias sp) Butterfly House, Devon, England. Captive, occurs in North America.
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Roger Powell / Oleander flowers (Nerium oleander) Ribera de Alvacar, Guerreiro, Castro Verde, Alentejo, Portugal, May.
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Stephen Dalton / Close up abstract view of roasted coffee beans (Coffea sp), UK.
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Stephen Dalton / Close up of a roasted coffee bean (Coffea sp), UK.
