David Tipling / Young boy blowing a dandelion head (Taraxacum officinale) in a forest. Norfolk, UK, May. Model released

Andrew Walmsley / Dandelion (Taraxacum officinale) detail of petals, Lake District NP, Cumbria, England, UK. June

Guy Edwardes / Dandelion (Taraxacum officinale) close up of flower seed head, Kingcombe Meadows, Beaminster, Dorset, England, May

Wild Wonders of Europe / Geslin / White tailed bumblebee (Bombus lucorum) collecting nectar from Dandelion flower (Taraxacum officinale) in the Vatican garden, Rome, Italy, March 2010

Wild Wonders of Europe / Geslin / White tailed bumblebee (Bombus lucorum) collecting nectar from Dandelion flower (Taraxacum officinale) in the Vatican garden, Rome, Italy, March 2010

Stephen Dalton / Dandelion {Taraxacum officinale} single seed left on flower head, UK

Donald M. Jones / Golden-mantled Ground Squirrel (Callospermophilus lateralis) eating Dandelion (Taraxacum officinale), western Montana

Donald M. Jones / Golden-mantled Ground Squirrel (Callospermophilus lateralis) eating Dandelion (Taraxacum officinale), western Montana

Kim Taylor / Dandelion (Taraxacum officinale) seeds blowing in the wind. Digital composite, UK.

Konrad Wothe / Dandelion (Taraxacum officinale) ready to release its seeds, Germany, introduced into North America as a salad green now is invasive weed

Tim Fitzharris / Dandelion (Taraxacum officinale) with bee covered with pollen, Pennsylvania

Mitsuaki Iwago / Domestic Cat (Felis catus) kitten in field of Dandelions (Taraxacum officinale)

Solvin Zankl / Dandelion seed floating {Taraxacum officinale} Germany

Juan Manuel Borrero / Illustration of Ginger (Zingiber officinale). Pencil and watercolor painting.

Mark Taylor / Dandelion (Taraxacum officinale) seeds being blown by girl Siena, aged 4, UK Model released

Mark Taylor / Dandelion (Taraxacum officinale) seeds being blown by Siena, aged 4, UK Model released

Donald M. Jones / Black Bear (Ursus americanus) in a field of Dandelions (Taraxacum officinale), Jasper National Park, Alberta, Canada

Will Watson / Watercress (Rorippa nasturtium-aquaticum) and Yellow flag iris (Iris pseudacorus) growing in spring-fed pond, with backdrop of ancient woodland, Herefordshire, England, June 2008.

Sandra Bartocha / Dandelion seed head (Taraxacum officinale) with seeds blowing away, Germany, May

Sandra Bartocha / Dandelion seeds (Taraxacum officinale), May

Sandra Bartocha / Dandelion seed head (Taraxacum officinale) June

Eric Baccega / Dandelion (Taraxacum officinale) seed blowing in the wind Alsace, France

Alex Hyde / Dandelion (Taraxacum officinale) seed-head. The National Forest, Leicestershire, UK, May.

Ross Hoddinott / Young girl blowing a Dandelion seedhead (Taraxacum officinale) UK, April 2011. Model released

Ann & Steve Toon / Striped hoverfly (Helophilus pendulus) feeding on dandelion (Taraxacum officinale) Northumberland National Park, UK, September.

MYN / Piotr Naskrecki / Common dandelion (Taraxacum officinale) flower and seedhead, Concord, Massachusetts, USA, May. meetyourneighbours.net project

Matthias Breiter / Dandelion (Taraxacum officinale) seed head, Spruce Woods Provincial Park, Manitoba, Canada

Ernie Janes / Dandelion (Taxaxacum officinale) seeds blowing in the wind, UK, April

Ernie Janes / Dandelion (Taxaxacum officinale) seeds blowing in the wind, UK, April

Ernie Janes / Dandelion (Taxaxacum officinale) flowers in field, UK, April

Philippe Clement / Common Comfrey / Quaker Comfrey / Boneset / Knitbone (Symphytum officinale) in flower. Belgium, May.

Philippe Clement / Common Comfrey / Quaker Comfrey / Boneset / Knitbone (Symphytum officinale) in flower. Belgium, May.

Terry Whittaker / 2020VISION / Common Comfrey (Symphytum officinale) flowering on Wicken Fen, Cambridgeshire, UK, June

Terry Whittaker / 2020VISION / Common Comfrey (Symphytum officinale) flowering on Wicken Fen, Cambridgeshire, UK, June

Terry Whittaker / 2020VISION / Common Comfrey (Symphytum officinale) flowering on managed grassland, Wicken Fen, Cambridgeshire, UK, June

Terry Whittaker / 2020VISION / Bee visiting flower of Common Comfrey (Symphytum officinale) on managed grassland, Wicken Fen, Cambridgeshire, UK, June

Terry Whittaker / 2020VISION / Bee visiting flower of Common Comfrey (Symphytum officinale) on managed grazing land, Wicken Fen, Cambridgeshire, UK, June.

Colin Varndell / Dandelion (Taraxacum officinale) in flower. Dorset, UK, April.

Laurent Geslin / Dandelion (Taraxacum officinale) seed head with seeds blowing away, Switzerland, May

Gary K. Smith / Common Dandelion (Taraxacum officinale) growing on rough pasture. Norfolk, England, April.

Gary K. Smith / Comfrey (Symphytum ibericum) 'Hidcote Blue' in flower. Norfolk, England, April.

Gary K. Smith / Common Dandelion (Taraxacum officinale) close up of flower head. Norfolk, England, April.

Ernie Janes / Silhouette of Dandelion (Taraxacum officinale) seedheads, UK

Ernie Janes / Silhouette of Dandelion (Taraxacum officinale) seedheads with seeds blowing in wind, UK

Ernie Janes / Dandelion flowers (Taraxacum officinale) and Daisies (Bellis perenis) UK

Ernie Janes / Silhouette of Dandelion (Taraxacum officinale) seedheads, UK

Ernie Janes / Dandelion (Taraxacum officinale) seedheads with seeds blowing in wind, UK

Alan Williams / Dandelions (Taraxacum officinale) growing in field on organic livestock farm, Cheshire, UK, April 2011

Alan Williams / Dandelions (Taraxacum officinale) growing in field on organic livestock farm, Cheshire, UK, April 2011

Robert Thompson / Comfrey (Symphytum officinale) growing through leaf litter. Plitvice National Park, Croatia, May 2010.

Adrian Davies / Common Comfrey (Symphytum officinale) in flower. UK, April.

Adrian Davies / Common Comfrey (Symphytum officinale) in flower. UK, April.

Philippe Clement / Common Dandelion (Taraxacum officinale) flowers in meadow in spring. La Brenne, France, April.

Philippe Clement / Carpet of Dandelion (Taraxacum offinale) flowers in meadow in spring. La Brenne, France, April.

Philippe Clement / Carpet of Dandelion (Taraxacum offinale) flowers in meadow in spring. La Brenne, France, April.

Colin Varndell / Dandelion (Taraxacum officinale) in flower. Dorset, UK, April.

Konrad Wothe / Dandelion (Taraxacum officinale) seed head showing achene with attached seeds, Bavaria, Germany

Konrad Wothe / Dandelion (Taraxacum officinale) seed head showing achenes, Bavaria, Germany

Ernie Janes / Dandelion (Taxaxacum officinale) in field. UK, April.

Nature Production / Common Dandelion (Taraxacum officinale) seeds dispersing in the wind, Gunma, Japan

Nick Upton / Dandelions (Taraxacum officinale) carpet pastureland on Biebrza marsh after the retreat of spring floods, Biebrza National Park, Podlaskie, Poland, May 2008.

Nick Upton / Traditional fisherman's punt moored at margins of Biebrza river alongside pastureland carpeted with Dandelions (Taraxacum officinale) after the retreat of spring floods, Biebrza National Park, Podlask...

Ross Hoddinott / Dandelion clocks (Taraxacum officinale) or seed heads. Lanhydrock, Cornwall, UK, May

Philippe Clement / Early purple orchid (Orchis mascula) and Common dandelion (Taraxacum officinale) flowers in meadow, Belgium, May

Andrew Walmsley / Dandelion (Taraxacum officinale) detail of petals, Lake District NP, Cumbria, England, UK. June

Nick Upton / Common comfrey (Symphytum officinale) flowering in a hay meadow. Gloucestershire, UK, June.

Nick Upton / Common comfrey (Symphytum officinale) flowering in a hay meadow. Gloucestershire, UK, June.

Nick Upton / Dandelion (Taraxacum officinale) seedhead close up, Wiltshire hay meadow, UK, May.

Nick Upton / Scarlet Tiger Moth caterpillar (Callimorpha dominula) feeding on Common Comfrey leaf (Symphytum officinale) Wiltshire, UK, April.

Philippe Clement / Common Dandelion (Taraxacum officinale) in flower, Belgium

Ann & Steve Toon / Dandelion (Taraxacum officinale) close up of seedhead, UK

Tim Laman / Wild ginger plant (Zingiber sp) flowering in the lowland rainforest, Gunung Palung National Park, Borneo, West Kalimantan, Indonesia.

Wild Wonders of Europe / Geslin / White tailed bumblebee (Bombus lucorum) collecting nectar from Dandelion flower (Taraxacum officinale) in the Vatican garden, Rome, Italy, March 2010

Stephen Dalton / Dandelion (Taraxacum officinale) dispersing in wind, UK

Stephen Dalton / Dandelion seed disperal (Taraxacum officinale) UK

Donald M. Jones / Black Bear (Ursus americanus) eating a Dandelion (Taraxacum officinale) flower, western Montana

Robert Thompson / Dandelion seedheads {Taraxacum sp} Brackagh Moss NNR, Co.Armagh, Northern Ireland

Stephen Dalton / Close up of Dandelion seeds {Taraxacus officinale} UK

Wild Wonders of Europe / Tønning / Rough / Prickly Comfrey (Symphytum asperum) in flower, near Meysembourg, Larochette, Mullerthal, Luxembourg, May 2009

Donald M. Jones / Golden-mantled Ground Squirrel (Callospermophilus lateralis) eating Dandelion (Taraxacum officinale), western Montana

Donald M. Jones / Golden-mantled Ground Squirrel (Callospermophilus lateralis) eating Dandelion (Taraxacum officinale), western Montana

Donald M. Jones / Golden-mantled Ground Squirrel (Callospermophilus lateralis) eating Dandelion (Taraxacum officinale), western Montana

MYN / Niall Benvie / Dandelion (Taraxacum officinale) clocks / seedheads, Angus, Scotland, April, Digital composite meetyourneighbours.net project

Nick Upton / Dandelions (Taraxacum officinale) carpet pastureland on Biebrza marsh, Poland

Simon Colmer / Dandelion flower (Taraxacum officinale) UK

Solvin Zankl / Common dandelion (Taraxacum officinale) flower in meadow, Germany

Peter Lewis / Snakes head fritillarys (Fritillaria meleagris) and Dandelions (Taraxacum officinale) flowering at North Meadow, nr Cricklade, Wiltshire, UK

Albert Lleal / Dandelion (Taraxacum officinale) flower head with achenes

Martin Gabriel / Dandelion flowers (Taraxacum officinale) Bavaria, Germany

Martin Gabriel / Dandelion flowers (Taraxacum officinale) with Honey bee (Apis mellifera) Bavaria, Germany

Martin Gabriel / Dandelion flowers (Taraxacum officinale) growing on a fertilized meadow near houses, Bavaria, Germany

Martin Gabriel / Dandelion in flower (Taraxacum officinale) growing in crevice near building, Bavaria, Germany

Pete Oxford / Wild ginger {Zinger officinale} flowering, Amazonian Ecuador

Nature Production / Common Dandelion {Taraxacum officinale} seeds blowing in the wind, Japan

Konrad Wothe / Dandelion (Taraxacum officinale), Upper Bavaria, Germany

Mark Raycroft / Soft Coated Wheaten Terrier (Canis familiaris) puppy in a field of Dandelion