Edwin Giesbers / RF - Green-veined white butterfly (Pieris napi) on Cuckooflower (Cardamine pratensis), in meadow amongst Buttercup (Ranunculus sp) flowers. The Netherlands. March. (This image may be licensed either a...

Simon Littlejohn / Family of European otters (Lutra lutra) feeding and playing amongst Whitewater crowfoot (Ranunculus aquatilis) flowers, River Stour, Dorset, England, UK, June.

Ross Hoddinott / Lesser celandine flower (Ranunculus ficaria), Cornwall, England, UK. April.

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

Michael Hutchinson / Marsh fritillary butterfly (Euphydryas aurinia) flying and landing on a Buttercup (Ranunculus), Devon, England, UK, June.

Michael Hutchinson / Pair of Marsh fritillary butterflies (Euphydryas aurinia) courting on a Buttercup (Ranunculus), Devon, England, UK, June.

Michael Hutchinson / Pair of Marsh fritillary butterflies (Euphydryas aurinia) courting on a Buttercup (Ranunculus), Devon, England, UK, June.

Michael Hutchinson / Marsh fritillary butterfly (Euphydryas aurinia) nectaring from a Buttercup (Ranunculus) before taking off, Devon, England, UK, June.

Michael Hutchinson / Male Marsh fritillary butterfly (Euphydryas aurinia) displaying to a female on a Buttercup (Ranunculus) flower, Devon, England, UK, June.

Edwin Giesbers / Turban buttercup (Ranunculus asiaticus) growing on bank beside footpath with sea beyond. Cyprus. April.

Klein & Hubert / Tabby kitten (age 7 weeks) batting paw, in garden with buttercups, France.

Klein & Hubert / Tabby kitten (age 7 weeks) walking on fence in garden with buttercups, France.

Nick Upton / Eurasian beaver (Castor fiber) feeding on grass amongst Meadow buttercups (Ranunculus acris) near a pond in a large enclosure, Devon, England, UK, June. Captive.

Wild Wonders of Europe / Bartocha / Meadow buttercup (Ranunculus acris) and Poet's daffodil (Narcissus poeticus) on the Piano Grande, Monti Sibillini National Park, Italy, May.

Wild Wonders of Europe / Bartocha / Meadow buttercup (Ranunculus acris) and Poet's daffodil (Narcissus poeticus) on the Piano Grande, Monti Sibillini National Park, Italy, May, 2009.

Ross Hoddinott / 2020VISION / Lesser celandine (Ranunculus ficaria) in flower, Cornwall, England, UK, March.

Ross Hoddinott / 2020VISION / Lesser celandine (Ranunculus ficaria) in flower, Cornwall, England, UK, March. Did you know? William Wordsworth wrote three poems about Lesser celandines.

Mark Hamblin / 2020VISION / Buttercup (Ranunculus) flowers growing on Machair farmland, South Uist, Outer Hebrides, Scotland, UK, July. 2020VISION Book Plate.

Sandra Bartocha / Common Water-Crowfoot (Ranunculus aquatilis) with reflections in water, June

Sandra Bartocha / Common Water-Crowfoot (Ranunculus aquatilis) June

Ross Hoddinott / Lesser celandine (Ranunculus ficaria) close up of flowers, Broxwater, North Cornwall, UK, March.

Mark Hamblin / 2020VISION / Creeping buttercup (Ranunculus repens) covering an unimproved field, Cromdale, Cairngorms NP, Scotland, UK, June

Inaki Relanzon / Rocks at water edge with reflection and Water crowfoot (Ranunculus peltatus) flowering, National Park Los Barruecos, Malpartida de Caceres, Spain, March 2011

Paul Hobson / Lesser celandine ( Ranunculus ficaria) flowers, UK, April

Andy Sands / Flower beetle (Cryptocephalus sericeus) feeding on flower of Buttercup (Ranunculus sp) England, UK, Captive.

Edwin Giesbers / Lesser celandine (Ranunculus ficaria) flower, Hallerbos, Belgium

Wild Wonders of Europe / Lilja / Two Bermuda buttercup (Oxalis pes caprae) flowers, Akamas peninsula, Cyprus, April 2009

Wild Wonders of Europe/ Bartocha / Meadow buttercup (Ranunculus acris) flowers in a meadow, Piano Grande mountain foothills, Sibillini National Park, Italy, May 2009 WWE BOOK. WWE INDOOR EXHIBITION

Wild Wonders of Europe / Máté / (Ranunculus sp) flower, Prypiat area, Belarus, June 2009

Wild Wonders of Europe / Bartocha / Meadow buttercup (Ranunculus acris) and Poet's daffodil (Narcissus poeticus) flowers, Piano Grande, Monti Sibillini National Park, Umbria, Italy, May 2009

Wild Wonders of Europe / Bartocha / Meadow buttercup (Ranunculus acris) and Poet's daffodil (Narcissus poeticus) flowers, Monte Vettore/Piano Grande/Monti Sibillini National Park, Umbria, Italy, May 2009

Wild Wonders of Europe / Lilja / Bermuda buttercup (Oxalis pes caprae) flowers, Akamas peninsula, Cyprus, May 2009

Wild Wonders of Europe / Lilja / A closed pink Turban buttercup (Ranunculus asiaticus) flower, Hisarköy, Northern Cyprus, April 2009

Wild Wonders of Europe / della Ferrera / Flowering Hairy vetch (Vicia villosa) Common poppy (Papaver rhoeas) and Buttercup (Ranunculus) in the meadows of Nuglasica area, Northern Livanjsko Polje (karst plateau) Bosnia and Herzegovina, May 20...

Wild Wonders of Europe / della Ferrera / Flowering Thread-leaved water-crowfoot (Ranunculus trichophyllus) plants in the middle of a season river, Northern part of the Livanjsko Polje (karst plateau) Zdralovac area, Bosnia and Herzegovina, M...

Wild Wonders of Europe / Giesbers / Buttercup (Ranunculus breyninus) in flower, Liechtenstein, July 2009

Wild Wonders of Europe / Giesbers / Buttercup (Ranunculus breyninus) flower, Liechtenstein, July 2009

Wild Wonders of Europe / Giesbers / Alpine buttercup (Ranunculus alpestris) flowers, Liechtenstein, June 2009

Wild Wonders of Europe / Widstrand / Abstract of Buttercup (Ranunculus acris) flower, close-up, Flatanger, Norway, June 2008

Wild Wonders of Europe / Tønning / Buttercups (Ranunculus acris) flowering in a meadow, Oesling, Ardennes, Luxembourg, May 2009

Wild Wonders of Europe / Wothe / Flowering meadow with Thistles (Cirsium rivulare) and Buttercups (Ranunculus acris) Poloniny National Park, Western Carpathians, Eastern Slovakia, Europe, June 2009

Wild Wonders of Europe / Wothe / Flowering meadow with Thistles (Cirsium rivulare) and Buttercups (Ranunculus acris) Poloniny National Park, Western Carpathians, Eastern Slovakia, Europe, June 2009

Wild Wonders of Europe / Lilja / Turban buttercup (Ranunculus asiaticus) flowers, Akamas peninsula, Cyprus, April 2009

Wild Wonders of Europe / Wothe / Flowering meadow with Spreading bellflower (Campanula patula) and Buttercup (Ranunculus sp) Poloniny National Park, East Slovakia, Europe, June 2008

Wild Wonders of Europe/ Bartocha / Green-winged orchid (Anacamptis morio) in flower, Gargano National Park, Gargano Peninsula, Apulia, Italy, April 2008

Michel Roggo / Underwater landscape with River water-crowfoot (Ranunculus fluitans) Rhine river, Switzerland, June

Michael Hutchinson / Lesser Celandine (Ranunculus ficaria) in deciduous woodland clearing with bluebells and stand of beech trees in background, North Somerset, UK

Jose B. Ruiz / Buttercups {Ranunculus sp.} growing in thawing Ice cave, Picos de Europa, Cantabria, Spain.