Andres M. Dominguez / Great green bush-cricket (Tettigonia viridissima) and Common poppy (Papaver rhoeas) Sierra de Grazalema Natural Park, southern Spain, April.

Laurent Geslin / Fulani woman preparing local drink 'Fole wadere' from flower petals, North Senegal, West Africa, 2005

Alex Hyde / Jumping spider (Euophrys frontalis) male amongst flower petals, Peak District National Park, Derbyshire, UK, June.

MYN / Paul Harcourt Davies / California poppy (Eschscholzia californica) the national flower of California naturalised areas of Europe, Italy, June. meetyourneighbours.net project

Ben Hall / 2020VISION / Ragged robin (Silene flos-cuculi) close-up of flower, Montiagh's Moss, County Antrim, Northern Ireland, UK, June. Did you know? Ragged robin gets it's name from it's thin tattered looking petals.

Barrie Britton / Male Vogelkop bowerbird (Amblyornis inornata) inspects the decorations outside his bower. Vogelkop Peninsula, West Papua, Indonesia. Picture taken during filming for BBC "Life" TV Series, September 20...

Edwin Giesbers / Borage (Borago officinalis) flower backlit, Menorca, Balearic Islands, Spain, Europe

Edwin Giesbers / Convolulus flower (Convolvulus sp) Menorca, Balearic Islands, Spain, Europe

Edwin Giesbers / Crown daisy flower (Glebionis coronarium) Menorca, Balearic Islands, Spain, Europe

Edwin Giesbers / Beetle on petal of Crown daisy flower (Glebionis coronarium) Menorca, Balearic Islands, Spain, Europe

Edwin Giesbers / Close up of Wild gladiolus flower (Gladiolus illyricus) Menorca, Balearic Islands, Spain

Edwin Giesbers / Close up of Wild gladiolus flower (Gladiolus illyricus) Menorca, Balearic Islands, Spain

Richard Du Toit / Impala lily flower (Adenium multiflorum) Sabi Sand GR, South Africa, October

Stephen Dalton / Red rose (Rosa sp), petal whorl, flower

Edwin Giesbers / European edible frog {Rana esculenta} beside Water Lily flower {Nymphaea alba} the Netherlands

Wild Wonders of Europe / Lilja / Rock tulip (Tulipa saxatilis) close-up of flower, Katharo, Crete, Greece, April 2009

Wild Wonders of Europe / Lilja / Insect on Cyclamen (Cyclamen persicum) flower, Akamas peninsula, Cyprus, May 2009 WWE BOOK Wild Wonders kids book.

Wild Wonders of Europe / Giesbers / Alpine aster (Aster alpinus) flower with water droplets at the end of the petals, Liechtenstein, June 2009

Wild Wonders of Europe / Giesbers / Gladiolus (Gladiolus palustris) close-up of flower, Liechtenstein, June 2009

Wild Wonders of Europe / Giesbers / Mountain daisy (Leucanthemum adustum) close-up of flower, Liechtenstein, June 2009

Wild Wonders of Europe / Giesbers / Mountain cornflower (Centaurea montana) close-up of flower head, Liechtenstein, June 2009

Wild Wonders of Europe / Giesbers / Globeflower (Trollius europaeus) in flower with water droplets on petals, Liechtenstein, June 2009

Jack Dykinga / Colorado blue columbine (Aquilegia caerulea) in flower, Yankee Boy Basin, Uncompahgre National Forest, Colorado, USA

Wild Wonders of Europe / Bartocha / Three toothed orchid (Neotinea / Neotinea tridentata) flower, Gargano National Park, Gargano Peninsula, Apulia, Italy, May 2008

Shattil & Rozinski / Morning glory {Ipomoea sp} inside flower close-up, USA

Jerry Monkman / Purple coneflower / black sampson (Echinacea purpurea) flower, Maine, USA

Andy Sands / Common Poppy (Papaver rhoeas) Individual flower, Hertfordshire, England, UK

Rolf Nussbaumer / Lace Cactus {Echinocereus reichenbachii} flower abstract, Texas, USA

Philippe Clement / Marguerite flower detail {Leucanthemum vulgare} France

Martin Gabriel / Detail of Sunflower flower {Helianthus annuus} Germany

Geoff Simpson / Dog rose flower {Rosa canina} Derbyshire Dales, UK

Pete Oxford / Masdevallia orchid flower {Masdevallia veitchiana} Machu Picchu, Peru, Sth America

Nigel Cattlin / Daisy (Bellis perennis) cross section, composite flower with white ray florets and yellow disk florets.

Nigel Cattlin / Dandelion (Taraxacum officinale), cross section of composite flower with disk and ray florets, on black background.

Nigel Cattlin / Dandelion (Taraxacum officinale) on black background.

Nigel Cattlin / Common poppy (Papaver rhoeas). Berkshire, England, UK. June.

Nigel Cattlin / Tulip (Tulipa sp) flower with red petals, cross section showing mature anthers and style. Berkshire, England, UK. April.

Nigel Cattlin / Tulip (Tulipa sp) flower with orange petals, cross section showing mature anthers and style. Berkshire, England, UK. April.

Nigel Cattlin / White pasqueflower (Pulsatilla vulgaris 'Alba') cross section, close up of stamens and stigma, cultivated in garden. Berkshire, England, UK. April.

Nigel Cattlin / Daffodil (Narcissus cyclamineus 'Jetfire') cross section of flower trumpet with stamens, style and ovules inside ovary. March.

Nigel Cattlin / Daffodil (Narcissus cyclamineus 'Jetfire') cross section of flower trumpet with stamens, style and ovules inside ovary. March.

Nigel Cattlin / Field rose (Rosa arvensis) with Pollen beetles (Brassicogethes aeneus) on petals and anthers. Berkshire, England, UK. June.

Nigel Cattlin / Fox and cubs (Pilosella aurantiaca). Berkshire, England, UK. June.

Ernie Janes / Sweet iris (Iris pallida), water droplets and fly on petals. Cultivated in garden. Native to Dalmation Coast, Croatia.

Chris Mattison / Orchid (Ophrys argolica elegans). Cyprus. March.

Chris Mattison / White-spathed jack in the pulpit (Arisaema candidissimum). Western China. Cultivated.

Nigel Cattlin / A cotton flower (Gossypium hirsutum) from the fibre crop against a black background

Nigel Cattlin / Rose thrips (Thrips fuscipennis) damage to pink Rose (Rosa sp) flower. Berkshire, England, UK.

Nigel Cattlin / Fly orchid (Ophrys insectifera) flower. Hampshire, England, UK.

Heather Angel / Red poppywort (Meconopsis punicea), raindrops on flower and stem. Medicinal plant in Tibet. Balang Shan, Sichuan Province, China. June.

Heather Angel / Spotted blister beetle (Ceroctis capensis) feeding on Gladiolus (Gladiolus alatus) petals. Cape Town, South Africa. September.

Heather Angel / Hibiscus (Hibiscus sp) flower with stigmas and pollen covered stamens. Focus stacked.

Heather Angel / Seep monkey flower (Mimulus guttatus), bifid stigma above stamens. Nectar spot guides and central groove leading pollinators to nectar. Focus stacked.

Heather Angel / Snowdrop (Galanthus nivalis) anthers and inner petals.Outer petals have been removed. Focus stacked.

Heather Angel / Cup and saucer plant (Cobaea scandens) with stamens contracting. Wide mouthed flower pollinated by bats in South America. Focus stacked.

Heather Angel / Crocus (Crocus sp) flower from above, closing in evening. Focus stacked.

Heather Angel / Daffodil (Narcissus sp) opening, view from above. Focus stacked.

Heather Angel / Peach leaved bellflower (Campanula persicifolia) dissection, petals removed to show how stamens transfer pollen to style via secondary pollen presentation in bud stage. Focus stacked.

Heather Angel / Mauritian bloody bellflower (Nesocodon mauritianus), female phase with red nectar at base of style. Cultivated at Kew Gardens, London, England, UK. Native to Mauritius.

Heather Angel / Sacred lotus (Nelumbo nucifera 'Charles Thomas') flower. Cultivated in glasshouse, Surrey, England, UK.

Heather Angel / Spiderplant (Cleome hirta) flowerhead.Patterns on two banner petals serve as nectar guides. Tanzania.

Heather Angel / Winter aconite (Eranthis hyemalis) flower and bud. Ring of nectaries formed from petals. In garden, Surrey, England, UK. February.

Heather Angel / Wood pigeon (Columba palumbus) feeding on sweet petals of nectarless Feijoa (Acca sellowiana). Kew Gardens, London, England, UK. July.

Heather Angel / Glory lily (Gloriosa superba) bud and flower with reflexed petals and trifid stigma. Pollinated by butterflies. National flower of Zimbabwe.

Heather Angel / St Helena ebony / Dwarf ebony (Trochetiopsis ebenus) with secondary pollen presentation on petal rims. In cultivation, Kew Gardens, London, England, UK. Endemic to St Helena, South Atlantic Ocean.

Heather Angel / Gold-tailed melitta bee (Melitta haemorrhoidalis), two males sleeping at night in Peach-leaved bellflower (Campanula persicifolia). In garden, Surrey, England, UK. Focus stacked.

Heather Angel / Arabian star flower (Ornithogalum arabicum) in UV light with exposed nectar fluorescing yellow. Native to Northern Africa and Southern Europe. Series 1/2.

Heather Angel / Arabian star flower (Ornithogalum arabicum) in visible light. Nectar visible in lower flower. Native to Northern Africa and Southern Europe. Series 2/2.

Heather Angel / Flannel bush (Fremontodendron 'California Glory') with exposed nectar glistening in sun. Native to southwest USA.

Heather Angel / Flowering rush (Butomus umbellatus) with stamens and stigma, nectar globules at base of carpels. Surrey, England, UK. Focus stacked.

Heather Angel / Mysore clock vine (Thunbergia mysorensis) with nectar overflowing in morning. In cultivation, Kew Gardens, London, England, UK. Native to India.

Heather Angel / Crown imperial lily (Fritillaria imperialis), six nectaries at base of stamens and stigma. In cultivation, Native to southeast Turkey and western Himalayas.

Heather Angel / Gold band lily (Lilium auratum) with yellow nectar guides. In cultivation. Native to Japan.

Heather Angel / Morning glory (Ipomoea tricolor) flower with pollen grains scattered by visiting insects.

Heather Angel / Christmas rose (Helleborus niger) flower, pollen on dehisced anthers and on petals fluorescing in UV light. Nectar ring appearing red. Focus stacked.

Heather Angel / Lisbon false sun-rose / Yellow rock rose (Halimium lasianthum) flowers. Blotch at base of petals guides pollinators to nectar source.

Heather Angel / Darwin's slipper flower (Calceolaria uniflora) in UV light. Stamens and fleshy lip that provides food reward for polliator Least seedsnipe (Thinocorus rumicivorus) fluorescing. Native to Tierra de...

Heather Angel / Darwin's slipper flower (Calceolaria uniflora) in visible light. Stamens and fleshy lip that provides food reward for polliator Least seedsnipe (Thinocorus rumicivorus) fluorescing. Native to Tier...

Heather Angel / Geraldton wax flower (Chamelaucium uncinatum), nectar fluorescing in UV light. Western Australia. Controlled conditions, focus stacked. Series 1/2.

Heather Angel / Geraldton wax flower (Chamelaucium uncinatum) in visible light. Western Australia. Controlled conditions, focus stacked. Series 1/2.

Heather Angel / Afghanistan Juno iris (Iris cycloglossa) with yellow nectar guides. In cultivation, Kew Gardens, London, England, UK. Native to Afghanistan.

Heather Angel / Red bowled anemone (Anemone bucharica) with dark stamens and patterns on petal bases to attract Scarab beetle (Eulasia sp) pollinators. Beetles pick up pollen on hairy bodies but can damage petals, Ta...

Heather Angel / Southern magnolia / Bull bay (Magnolia grandiflora) flower. The opening and closing of petals controls the time beetle pollinators enter and leave the flower. Cultivated in garden, Surrey, England, UK...

Heather Angel / Bumblebee (Bombus sp) nectaring on Indian horse chestnut flower (Aesculus indica). Yellow spots on banner petals turn pink as nectar resource declines. Orange pollen is pick ed up on wings and thorax...

Heather Angel / Large-flowered evening primrose (Oenothera glazioviana). Bull's eye in centre of flower fluorescing in UV light guides pollinators to nectaries. At night in garden. Surrey, England, UK.

Heather Angel / Tulip tree (Liriodendron tulipifera) flower with orange band to attract bees, produces copious nectar. In visible light. Surrey, England, UK. Native to USA. Focus stacked. Sequence 1/2.

Heather Angel / Porcelain orchid (Chloraea magellanica) with osmophores on lip, in visible light. Chile. Controlled conditions, focus stacked. Sequence 1/2.

Heather Angel / Foxglove (Digitalis purpurea) corollas with spatter mark nectar guides. Pollinated by long tongued bumblebees able to reach nectar. Long guard hairs said to prevent small insects from entering, could...

Heather Angel / Sacred lotus (Nelumbo nucifera) taken with infra-red thermograph camera. Top of receptacle hottest at 35 degrees Celsius with stamens at 30 degrees Celsius. Cultivated in glasshouse, Surrey, England,...

Heather Angel / Yellow mariposa lily (Calochortus luteus) with dark nectar guides. Cultivated in glasshouse, Surrey, England, UK. Endemic to California.

Heather Angel / Winter aconite (Eranthis hymenalis) in UV light, pollen on outer stamens that have dehisced fluorescing. Focus stacked.

Heather Angel / Common rue (Ruta graveolens) flower in visible light, nectar at base of petals. Stamens flip up sequentially with one still folded over the receptacle. Surrey, England, UK. Native to Balkan Peninsula....

Heather Angel / Common rue (Ruta graveolens) flower in UV light, pollen and nectar at base of petals fluorescing. Insect pollinators are able to see position of rewards on offer. Surrey, England, UK. Native to Balkan...

Heather Angel / Tulip tree (Liriodendron tulipifera) flower, pollen and nectar fluorescing in UV light. Surrey, England, UK. Native to USA. Focus stacked. Sequence 2/2.

Heather Angel / Porcelain orchid (Chloraea magellanica) with osmophores on lip fluorescing in UV light. Chile. Controlled conditions, focus stacked. Sequence 2/2.

Heather Angel / Sacred lotus (Nelumbo nucifera) in visible light. Cultivated in glasshouse, Surrey, England, UK. Sequence 1/2.