Morley Read / Gentian flowers (Gentiana cerastoides) moving in the wind, near Cotopaxi Volcano, Ecuador. (non-ex)

Kevin Schafer / Bumblebee (Bombus sp) on flower, Juneau, Alaska

Richard Du Toit / Greater Double-collared Sunbird (Nectarinia afra) male on Pincushion (Leucospermum sp) flower, Western Cape, South Africa

Martin Willis / Red-collared Lorikeet (Trichoglossus rubritorquis) feeding on flower nectar, Kimberley, Western Australia, Australia

Guy Edwardes / Marbled white (Melanagria galathea), two butterflies on Pyramidal orchid (Anacamptis pyramidalis). Badbury Rings, Wimborne Minster, Dorset, England, UK. June.

Heather Angel / Honey bee (Apis mellifera) forages on pollen in Apple (Malus domestica) flower, collecting pollen in pollen basket. In garden, Surrey, England, UK. May.

Nick Upton / Six-spot burnet moth (Zygaena filipendulae), Marbled white butterflies (Melanargia galathea) and a Dark green fritillary (Argynnis aglaja) nectaring on a clump of Greater knapweed flowers (Centaurea s...

Nick Upton / Male Thick-legged flower beetle (Oedemera nobilis), with a Pyramidal orchid (Anacamptis pyramidalis) pollinium attached to its head, nectaring on Common hogweed flowers (Heracleum sphondylium), Wiltsh...

Nick Upton / Marbled white butterflies (Melanargia galathea) nectaring on a clump of Greater knapweed flowers (Centaurea scabiosa) in a chalk grassland meadow, Wiltshire, England, UK, June.

Nick Upton / Marbled white butterflies (Melanargia galathea) nectaring on a clump of Greater knapweed flowers (Centaurea scabiosa) in a chalk grassland meadow, Wiltshire, England, UK, June.

Jeff Foott / California Poppy (Eschscholzia californica) and Goldfield (Lasthenia californica) flowers,superbloom, Antelope Valley, California

Jeff Foott / Purple Owl's Clover (Castilleja exserta) and Goldfield (Lasthenia californica) flowers, super bloom, Carrizo Plain National Monument, California

Jeff Foott / California Poppy (Eschscholzia californica) and Goldfield (Lasthenia californica) flowers,super bloom, Antelope Valley, California

Jeff Foott / California Poppy (Eschscholzia californica) and Goldfield (Lasthenia californica) flowers, super bloom, Antelope Valley, California

Jeff Foott / Mule-ears (Wyethia amplexicaulis) flowers at the The Organ, Arches National Park, Utah

Jeff Foott / Paintbrush (Castilleja sp) flowers, Arches National Park, Utah

Nick Upton / Sand-loving / Square-headed wasp (Tachysphex costae) feeding on Sea holly flowers (Eryngium maritimum) on a beach, Sardinia, Italy, June.

Edwin Giesbers / Umbilicate woodcock orchid (Ophrys umbilicata) flowers. Cyprus. April.

Edwin Giesbers / Crown daisy (Glebionis coronarium) flowers against sky, low angle view. Cyprus. April.

Edwin Giesbers / Persian cyclamen (Cyclamen persicum) flowers. Cyprus. April.

Marie Read / Ruby-throated Hummingbird (Archilocus colubris), male flying in to feed from cardinal flowers (Lobelia cardinalis) New York, USA. August.

Marie Read / Eastern bluebird (Sialia sialis) male fluttering wings while perched on cherry (Prunus sp.) branch in spring, New York, USA, April.

Marie Read / Baltimore oriole (Icterus galbula) male perched in pear (Pyrus sp.) blossom, eastern redbud in background, New York, USA. May.

Marie Read / Arctic terns (Sterna paradisaea), two in flight over nesting colony in field of buttercups (Ranunculus sp.), Keflavik, Iceland. Digital canvas expansion.

Ernie Janes / Hummingbird hawk moth (Macroglossum stellatarum) in flight feeding on Verbena flowers, England, UK. July.

Ernie Janes / Goldfinch (Carduelis carduelis) feeding on thistle flowers, England

Tim Fitzharris / Wildflowers and cacti, Caprock Canyons State Park, Texas

Donald M. Jones / Rufous Hummingbird (Selasphorus rufus) female feeding on flower nectar, Montana

Jack Dykinga / Foothills of the Temblor Range, carpeted with Coreopsis (yellow) and Purple Owl's Clover (Castilleja exserta) flowers. Carrizo Plain, California, USA. 30th March 2019.

Tim Fitzharris / Ruby-throated Hummingbird (Archilochus colubris) females feeding on flower nectar, Texas

Kerstin Hinze / Honeybee (Apis melifera) flying around and nectaring from Butterbur (Petasites hybridus) flowers, Bavarian Forest National Park, Germany, April.

Glenn Bartley/ BIA / Streamertail (Trochilus polytmus) male feeding on flower nectar, Jamaica

Steve Downer / Timelapse of Primrose (Primula vulgaris) flowers opening, UK. March. Controlled conditions.

Steve Downer / Timelapse of Blackthorn (Prunus spinosa) flowers opening, UK, April.

Sebastian Kennerknecht / Hairy Water Lily (Nymphaea pubescens) flower, Diyasaru Park, Colombo, Sri Lanka

Chien Lee / Pallas' Long-tongued Bat (Glossophaga soricina) approaching Tea Mangrove (Pelliciera rhizophorae) flower at night, Utria National Park, Colombia

Chien Lee / Pallas' Long-tongued Bat (Glossophaga soricina) approaching Tea Mangrove (Pelliciera rhizophorae) flower at night, Utria National Park, Colombia

Yva Momatiuk & John Eastcott / Heather (Calluna sp) flowering in tundra, Skaftafell National Park, Iceland

Konrad Wothe / Booted Racket-tail (Ocreatus underwoodii) feeding on flower nectar, Ecuador

Ann & Steve Toon / Cape sugarbird (Promerops cafer) among yellow Pincushion (Leucospermum cordifolium) flowers, Kirstenbosch Botanical Gardens, Cape Town, South Africa, September.

Chien Lee / Lesser Long-tongued Fruit Bat (Macroglossus minimus) approaching Durian (Durio zibethinus) flower nectar, Danum Valley Conservation Area, Sabah, Borneo, Malaysia

Willi Rolfes/ BIA / Pink Lady Slipper Orchid (Cypripedium calceolus) flowers, Lower Saxony, Germany

Theo Bosboom / Blue damselflies (Coenagrionidae) resting in heather flowers in dawn twilight, Hatertse vennen near Nijmegen, the Netherlands, August.

Donald M. Jones / Brown Bear (Ursus arctos) feeding on dandelions, western Canada

Donald M. Jones / Brown Bear (Ursus arctos) feeding on dandelions, western Canada

Donald M. Jones / Curve-billed Thrasher (Toxostoma curvirostre) feeding on cactus flower nectar, southern Arizona

Donald M. Jones / Curve-billed Thrasher (Toxostoma curvirostre) pair, southern Arizona

Graeme Guy/ BIA / Green-breasted Mango (Anthracothorax prevostii) male feeding on flower nectar, Costa Rica

Agustin Esmoris / Plovercrest (Stephanoxis lalandi) hummingbird feeding on flower nectar, Argentina

Agustin Esmoris / White-throated Hummingbird (Leucochloris albicollis) feeding on flower nectar, Argentina

Agustin Esmoris / White-throated Hummingbird (Leucochloris albicollis) feeding on flower nectar, Argentina

Agustin Esmoris / Gilded Hummingbird (Hylocharis chrysura) feeding on flower nectar, Argentina

Agustin Esmoris / Bananaquit (Coereba flaveola) on flower, Argentina

Agustin Esmoris / Honey Bee (Apis mellifera) feeding on Lavender (Lavandula sp) flower nectar, Argentina

Agustin Esmoris / Black-throated Mango (Anthracothorax nigricollis) hummingbird feeding on flower nectar, Argentina

Agustin Esmoris / Gulf Fritillary (Agraulis vanillae) butterfly on Zinnia (Zinnia sp) flower, Bahia Blanca, Argentina

Agustin Esmoris / Gulf Fritillary (Agraulis vanillae) butterfly on Zinnia (Zinnia sp) flower, Bahia Blanca, Argentina

Paul Bertner / Green Tree Ant (Oecophylla smaragdina) group on flowering plant, Angkor Wat, Cambodia

Jack Dykinga / Massive wildflower display with Lanceleaf monolopia 1+Monolopia lanceolata+2, and Orange fiddle neck 1+Amsinckia intermedia+2 The Temblor Range, also carpeted in flowers, in evening light in the backg...

Jack Dykinga / Indian paintbrush (Castilleja sp.) flowers amid boulders in a stream, in narrow canyon with conifers in background Grand Staircase-Escalante National Monument, Utah, USA.

Nick Upton / Slow motion clip of a Meadow brown butterfly (Maniola jurtina) and a Gatekeeper butterfly (Pyronia tithonus) nectaring on Saw-wort flowers (Serratula tinctoria), with a Silver-washed fritillary (Argyn...

Ingo Arndt / Lemon / Common lime swallowtail butterfly (Papilio demoleus) on flower head, Asia, Captive

Ingo Arndt / Common poppy flower (Papaver rhoeas), Europe

Tim Fitzharris / Rhododendron (Rhododendron sp) flowers and Coast Redwood (Sequoia sempervirens) trees in fog, Redwood National Park, California

Tim Fitzharris / Paintbrush (Castilleja sp) and Seaside Fleabane (Erigeron glaucus) flowering on coast, Garrapata State Beach, Big Sur, California

Thomas Marent / Velvet-purple Coronet (Boissonneaua jardini) hummingbird feeding on flower nectar, Las Tangaras Bird Reserve, Colombia

Glenn Bartley/ BIA / Golden-breasted Puffleg (Eriocnemis mosquera) feeding on flower nectar, Colombia

Debapratim Saha/ BIA / Streaked Spiderhunter (Arachnothera magna) feeding on Chinese Hat Plant (Holmskioldia sanguinea) flower nectar, West Bengal, India

Jack Dykinga / Whipple Mountain foothills, with flowering Notch-leaf scorpion-weed (Phacelia crenulata) and Heartleaf evening primrose (Camissonia cardiophylla) with the Riverside and Big Maria Mountains in the back...

Jack Dykinga / Whipple Mountain foothills, with flowering Notch-leaf scorpion-weed (Phacelia crenulata) and Heartleaf evening primrose (Camissonia cardiophylla) with the Riverside and Big Maria Mountains in the back...

Jack Dykinga / Notch-leaf scorpion-weed (Phacelia crenulata) blooming around Desert agave (Agave desertii) in Glorieta Canyon, Anza-Borrego State Park, California, USA, March 2017. These plants are flowering during...

Jack Dykinga / Flowering Sand verbena (Abronia) and Birdcage evening primrose (Oenothera deltoides) close up, Anza-Borrego State Park, California, USA. March 2017. These plants are flowering during on largest 'supe...

Lorraine Bennery / Knapweed fritillary butterflies (Melitaea phoebe) on Green winged orchid (Anacamptis morio), Grands Causses Regional Natural Park, France, May.

Clay Bolt / Central bumble bee (Bombus centralis) pollinating wildflowers in the Bridger Range, Bozeman, Montana. August.

John Abbott / Paper wasp (Polistes metricus) flying from flower, Tuscaloosa County, Alabama, USA Controlled conditions. September

Neil Aldridge / Two Lady's slipper orchids (Cypripedium calceolus) in flower in spring in woodland near Kuressaare, Saaremaa, Estonia.

Phil Savoie / Radnor lily (Gagea bohemica) the rarest flower in the UK at sunset, Stanner Rocks National Nature Reserve, Powys, Wales, UK, February. Commended in the BWPA (British Wildlife Photography Awards) Compe...

Stephen Dalton / Horse fly (Tabanus sp) male taking off from poppy seed-head (Papaver rhoeas) Sussex, UK

Floris van Breugel / Mid summer flowers abound in the mountains surrounding Mono Lake, California, USA, July

Floris van Breugel / Paintbrush (Castilleja parviflora) flowering in withered sage bush, White Mountains, California, USA, July

Floris van Breugel / California poppies (Eschscholzia californica) and California goldfields (Lasthenia californica) extend as far as the eye can see, Antelope Valley Poppy Preserve, California, USA

Floris van Breugel / California poppies (Eschscholzia californica) and California goldfields (Lasthenia californica) extend as far as the eye can see, Antelope Valley Poppy Preserve, California, USA

Floris van Breugel / Horned lark (Eremophila alpestris) wanders through spring wildflowers of the Anza-Borrego desert, California, USA March

Floris van Breugel / Dune primrose, Sand verbena, and Desert gold emerge from the sand after brief spring rains in Anza-Borrego Desert State Park, California, USA March

Floris van Breugel / Dune primrose, Sand verbena, and Desert gold emerge from the sand after brief spring rains in Anza-Borrego Desert State Park, California, USA March

Alex Hyde / Fragrant Orchid (Gymnadenia conopsea) and Yellow Rattle (Rhinanthus sp.) flowering in ancient alpine hay meadow. Nordtirol, Austrian Alps. June.

Ann & Steve Toon / Spring wildflowers, Papkuilsfontein farm, Nieuwoudtville, Northern Cape, South Africa, September 2015

Ann & Steve Toon / Spring wildflowers, Papkuilsfontein farm, Nieuwoudtville, Northern Cape, South Africa, September 2015

Ann & Steve Toon / Spring wildflowers, Papkuilsfontein farm, Nieuwoudtville, Northern Cape, South Africa, September 2015

Michael Durham / Honey Bee (Apis mellifera) with pollen baskets, Oregon

Greg Oakley/ BIA / Red Wattlebird (Anthochaera carunculata) feeding on flower nectar, Victoria, Australia

Biraj Sarkar/ BIA / Fire-tailed Sunbird (Aethopyga ignicauda) male feeding on flower nectar, Darjeeling, India

Biraj Sarkar/ BIA / Streaked Spiderhunter (Arachnothera magna) feeding on flower nectar, Darjeeling, India

Alex Hyde / Nine-spotted moth (Amata phegea) feeding from a Mountain arnica flower (Arnica montana) Triglav National Park, Julian Alps, Slovenia. July.

Alex Hyde / Fairy's thimble flower (Campanula cochleariifolia) growing in a crack running through a limestone slab. Triglav National Park, Julian Alps, Slovenia. July.