Steven David Miller / An Orange lacewing butterfly (Cethosia penthesilea), Cairns Botanical Gardens, Queensland, Australia. Captive. August.

Ann & Steve Toon / Malachite sunbird (Nectarinia famosa) feding at flower, Kirstenbosch National Botanical Garden, Cape Town, South Africa, September

Ann & Steve Toon / Orange-breasted sunbird (Anthobaphes violacea), Kirstenbosch National Botanical Garden, Cape Town, South Africa, September

Pascal Pittorino / Horned pansy (Viola cornuta) in botanic garden, Var, France, March.

Rob Tilley / Agave close up abstract (Agave sp) Botanical Garden, San Miguel de Allende, Mexico

Rob Tilley / Close up of Agave leaves (Agave macroacantha)Botanical Garden, San Miguel de Allende, Mexico

Mark Bowler / Looking up the stilt roots of a Fig tree (Ficus sp), Botanical Gardens, Entebbe, Uganda, July 2006

Ann & Steve Toon / Cape sugarbird (Promerops cafer), Kirstenbosch National Botanical Garden, Cape Town, South Africa.

Ann & Steve Toon / Cape sugarbird (Promerops cafer), Kirstenbosch National Botanical Garden, Cape Town, South Africa.

Heather Angel / Southern double-collared sunbird (Cinnyris chalybeus), male nectaring on Pincushion protea (Leucospermum cordifolium). Kirstenbosch National Botanical Garden, Cape Town, South Africa. August.

Heather Angel / Hopliine scarab beetle (Clania glenlyonensis) pair mating on Harlequin hesperantha (Hesperantha vaginata) flower. Glen Lyon Farm / Hantam National Botanical Garden, Northern Cape, South Africa. August...

Heather Angel / Cape sugarbird (Promerops cafer) male nectaring on Pincushion protea (Leucospermum cordifolium). Pollen transferred from anthers to bird's head. Kirstenbosch National Botanical Garden, Cape Town,...

Robert Valentic / Emma gray's forest dragon (Calotes emma emma) female from the botanical garden trail in karst rainforest habitat within the Phong Nha Ke Bang National Park in central Vietnam. Dry season.

Ann & Steve Toon / Cape bulbul (Pycnonotus capensis) feeding on flowers, Kirstenbosch Botanical Gardens, Cape Town, South Africa, September

Steven David Miller / An Orange lacewing butterfly (Cethosia penthesilea), Cairns Botanical Gardens, Queensland, Australia. Captive. August.

Steven David Miller / A Common eggfly butterfly (Hypolimnas bolina) at rest, Cairns Botanical Gardens, Queensland, Australia. Captive.

Ann & Steve Toon / Cape sugarbird (Promerops cafer) on king protea, Kirstenbosch National Botanical Garden, Cape Town, South Africa, September

Ann & Steve Toon / Southern double-collared sunbird (Cinnyris chalybeus), Kirstenbosch National Botanical Garden, Cape Town, South Africa, September

Ann & Steve Toon / Rock kestrel (Falco rupicolus), Kirstenbosch National Botanical Garden, Cape Town, South Africa, September

Ann & Steve Toon / Orange-breasted sunbird (Anthobaphes violacea) female on Leucospermum cordifolium 'Yellow Bird' Kirstenbosch National Botanical Garden, Cape Town, South Africa, September

Ann & Steve Toon / Orange-breasted sunbird (Anthobaphes violacea) on flower, Kirstenbosch National Botanical Garden, Cape Town, South Africa, September

Staffan Widstrand / Wild Wonders of China / India red waterlily (Nymphaea rubra / pubescens), pink blooming flower on a leaf in East Lake Greenway park botanical garden, Wuhan, Hubei, China

Staffan Widstrand / Wild Wonders of China / Close up of a Pickerelweed (Pontederia cordata) blooming in East Lake Greenway Park Botanical garden, Wuhan, Hubei, China

Staffan Widstrand / Wild Wonders of China / Pink Flower of the India red waterlily (Nymphaea rubra pubescens) East Lake Greenway park botanical garden, Wuhan, Hubei, China

Ernie Janes / Sulphur-crested cockatoo (Cacatua galerita) Hobart Botanical Garden, Tasmania, Australia.

Ernie Janes / Sulphur-crested cockatoo (Cacatua galerita) flock in flight over Hobart Botanical Garden Tasmania, Australia.

Ernie Janes / Saw banksia (Banksia serrata) flowers, Hobart botanical garden, Tasmania.

Ernie Janes / Red flowering gum (Corymbia ficifolia) Melbourne Botanical Garden, Victoria, Australia.

Kirkendall-Spring / Orchid in the Hawaii Tropical Botanical Garden near Hilo, Hawaii. December 2016.

Kirkendall-Spring / Waterfall in the Hawaii Tropical Botanical Garden near Hilo, Hawaii. December 2016.

Kirkendall-Spring / Waterfall in the Hawaii Tropical Botanical Garden near Hilo, Hawaii. December 2016.

Chris Mattison / Close up of Cycad (Encephalartos horridus) cone, Kirstenbosch Botanical Garden, Cape Town, South Africa

Chris Mattison / Cycad (Encephalartos horridus) cones, Kirstenbosch Botanical Garden, Cape Town, South Africa

Michael Hutchinson / Palm House, with flowering Tulips (Tulipa) in the foreground, Kew Gardens, London, England, UK, April 2016.

Martin Gabriel / Coco de mer palm tree (Lodoicea maldivica) with fruits, Victoria Botanical Garden, Mahe Island, Republic of Seychelles

Martin Gabriel / Seychelles black mud turtle (Pelusios subniger parietalis),Victoria Botanical Garden, Mahe Island, Republic of Seychelles. Captive. Critically endangered,

Edwin Giesbers / Zebra haworthia (Haworthia fasciata) Amsterdam Botanical Garden, the Netherlands

Edwin Giesbers / Reed palm (Chamaedorea seifrizi) fruit, Amsterdam Botanical garden, the Netherlands, August.

Edwin Giesbers / Bougainvillea (Bougainvillea var isabel greensmith) Botanical garden, Leiden, Netherlands

Edwin Giesbers / Collection of Cacti (Cactaceae) at TU Delft Botanical Garden, Netherlands, August.

Edwin Giesbers / Collection of Cacti (Cactaceae) in greenhouse at TU Delft Botanical Garden, Netherlands, August.

Edwin Giesbers / Mountain fleeceflower (Persicaria amplexicaulis) flower, TU Delft Botanical Garden, Netherlands, August

Edwin Giesbers / Orange coneflower (Rudbeckia fulgida). Occurs in North America. TU Delft Botanical Garden, Netherlands, August

Edwin Giesbers / Close up of bark of Himalayan birch (Betula jacquemontii). Occurs in the Himalayas. TU Delft Botanical Garden, Netherlands, August

Edwin Giesbers / Close up of needles of Wollemi pine (Wollemia nobilis) TU Delft Botanical Garden, Netherlands, August. Critically endangered species previously only known from fossil record.

Edwin Giesbers / Close up of needles of Wollemi pine (Wollemia nobilis). Endemic to Wollemi National Park in New South Wales, Australia. TU Delft Botanical Garden, Netherlands, August. Critically endangered species p...

Edwin Giesbers / Close up of leaf of Rattlesnake plant (Calathea lancifolia), occurs in Brazil. TU Delft Botanical Garden, Netherlands, August.

Edwin Giesbers / Indian mulberry (Morinda citrifolia) in flower. Occurs in Asia and Australasia. TU Delft Botanical Garden, Netherlands, August.

Edwin Giesbers / Majestic prayer plant (Calathea majestica) close up of leaf. Occurs in South America. TU Delft Botanical Garden, Netherlands, August.

Edwin Giesbers / Majestic prayer plant (Calathea majestica) close up of leaf. Occurs in South America. TU Delft Botanical Garden, Netherlands, August.

Edwin Giesbers / Close up of Calathea bachemiana leaf. Occurs in Brazil. TU Delft Botanical Garden, Netherlands, August.

Edwin Giesbers / Prayer plant (Calathea plowmanii) close up of leaf, TU Delft Botanical Garden, Netherlands, August.

Edwin Giesbers / Prayer plant (Calathea plowmanii) close up of leaf, TU Delft Botanical Garden, Netherlands, August.

Edwin Giesbers / Close up of Cactus spines (Pachycereus sp). Occurs in Mexico and Southern USA. TU Delft Botanical Garden, Netherlands, August.

Edwin Giesbers / German pink (Dianthus carthusianorum) flower, TU Delft Botanical Garden, Netherlands, August.

Juan Carlos Munoz / Arborescent ferns (Cyatheaceae) in Kells Bay Gardens, Ring of Kerry, Iveragh Peninsula, County Kerry, Republic of Ireland. September 2015.

Martin Gabriel / Caspian green lizard (Lacerta strigata) in botanical garden Yerevan, Armenia. May.

Ann & Steve Toon / Pincushion protea (Leucospermum cordifolium), Kirstenbosch Botanical Gardens, Cape Town, South Africa

Pascal Pittorino / China rose (Hibiscus sinensis) flower. Cultivated plant in a botanical garden, Bormes les Mimosas, Var, Provence, France, August

Mark Bowler / Rusty-margined guan (Penelope superciliaris) Rio de Janeiro Botanical Garden, Brazil.

Mark Bowler / Slaty-breasted wood rail (Aramides saracura) walking in grass, Rio de Janeiro Botanical Garden, Brazil.

Pascal Pittorino / Fairy duster flower (Calliandra haematocephala) close up, in botanic garden,Var, France, September.

Pascal Pittorino / Coral tree (Erythrina crista galli) flowers, in botanic garden, Var, France, July.

Pascal Pittorino / Queen victoria agave (Agave victoriae- reginae) close up, in botanic garden, Var, Provence, France, January.

Pascal Pittorino / Ice Poppy (Papaver croceum) bud opening, botanical garden, Toulon, Var, Provence, France, March

Pascal Pittorino / Orange clock vines (Thunbergia gregorii) in bloom, in botanic garden, Var, Provence, France, May.

Pascal Pittorino / Variegated leaves of Coleus plant (Plectranthus scutellarioides) and Marigold (Tagetes sp) flowers in a botanical garden, Var, France, Provence, July.

Pascal Pittorino / Black eyed susan (Rudbeckia hirta) cultivated flowers, in a botanic garden, Var, France, Provence, July

Pascal Pittorino / Bougainvillea(Bougainvillea glabra) with colourful leaf bracts, in botanic garden, Var, France, Provence, July.

Pascal Pittorino / Wall flowers cultivar (Erysimum sp) flowers in a botanical garden, Hyeres les palmiers, Var, Provence, France, January.

Pascal Pittorino / Sacred bamboo in fruit (Nandina domestica) in botanic garden, Var, Provence, France, January.

Pascal Pittorino / Trumpet creeper (Campsis radicans) flowers in a botanical garden, Var, Provence, France, June.

Pascal Pittorino / Mallow skipper butterfly (Carcharodus alceae) feeding on Opuntia cactus flower (Opuntia robusta) in botanic garden, Hyeres les palmiers, Var, Provence, France, June.

Pascal Pittorino / Angel wings (Caladium bicolor) leaf close up, in botanic garden, Var, Provence, France, June

Pascal Pittorino / Flowering Blue yucca (Yucca luminosa) in botanic garden, Var, Provence, France. June.

Pascal Pittorino / Flowering Blue yucca (Yucca luminosa) in botanic garden, Var, Provence, France. June.

Pascal Pittorino / Trumpet creeper / vine (Campsis radicans) flowers, in botanic garden, Var, Provence, France, June

Pascal Pittorino / Flowering Star magnolia tree ( Magnolia stellata) in botanical garden, Var, Provence, France, March.

Pascal Pittorino / Domestic cat (Felis catus) sleeping on a park bench, in botanic garden, Var, Provence, France, June.

Pascal Pittorino / Watering a flowerbed of Marigold (Tagetes sp) in botanic garden, Var, Provence, France, July.

Pascal Pittorino / Hydrangea flowers (Hydrangea sp) in botanic garden, Hyeres les palmiers, Var, Provence, France, July.

Pascal Pittorino / Watering a flowerbed of Marigold (Tagetes sp) in botanic garden, Var, Provence, France, July.

Pascal Pittorino / Mimosa (Acacia dealbata) flowers, in botanic garden, Var, Provence, France, February

Pascal Pittorino / California poppy (Eschscholzia californica) flower closed, in botanic garden, Hyeres les palmiers, Var, Provence, France, June.

Pascal Pittorino / Golden dewdrop / Pigeon berry (Duranta erecta) flowers, in botanic garden, Bormes les mimosas, Var, Provence, France, August.

Pascal Pittorino / Mimosa (Acacia dealbata) flowers, in botanic garden, Var, Provence, France, February.

Pascal Pittorino / Milkweed (Asclepias / Gomphocarpus fructicosus) in fruit, in botanic garden, Bandol, Var, Provence, France, March.

Pascal Pittorino / Canna flowers (Canna sp) and fruits in a botanical garden, Hyeres les Palmiers, Var, Provence, France, July.

Pascal Pittorino / River red gum (Eucalyptus camaldulensis) leaves and flowers in the rain, in botanical garden, Bormes les Mimosas, Var, France, January.

Pascal Pittorino / Cicada (Lyristes plebejus) resting on Marigold flower (Tagetes sp) in botanic garden, Var, Provence, France, July.

Pascal Pittorino / European honey bee (Apis mellifera) collecting pollen and nectar from Osteospermum flower, in botanic garden, Var, Provence, France, April.

Pascal Pittorino / European honey bee (Apis mellifera) collecting pollen from Opium poppy flower (Papaver somniferum), in botanic garden, Var, Provence, France, May.

Pascal Pittorino / Red gum tree flowers (Corymbia ficifolia) in botanic garden, Hyeres les palmiers, Var, Provence, France, July

Pascal Pittorino / Black eyed susan (Rudbeckia hirta) flowers, in botanic garden, Var, Provence, France, July.