Guy Edwardes / 2020VISION / Giant horsetail (Equisetum telmateia), Catcott Lows SWT reserve, Somerset Levels, England, UK, April. 2020VISION Book Plate. Did you know? Horsetails can grow to over two metres tall.

Stephen Dalton / Common horsetail (Equisetum arvense) shedding spores, UK

Sven Zacek / Fronds of Horsetail (Equisetum) in Spring, Estonia.

Wild Wonders of Europe / Wothe / Great horsetail (Equisetum telmateia) close-up of stem, Poloniny National Park, Western Carpathians, Eastern Slovakia, Europe, June 2009 WWE BOOK. WWE INDOOR EXHIBITION

Michel Roggo / Horsetails (Equisetum) Jiuzhaigou National Park, Jiuzhaigou Valley Scenic and Historic Interest Area UNESCO World Heritage Site, Sichuan, China. May 2013. Photographed for The Freshwater Project

Orsolya Haarberg / Water Horsetails (Equisetum fluviatile) reflected in water, Femundsmarka National Park, Norway.

Cyril Ruoso / Horsetails (Equisetum laevigatum) underwater, Conboy Lake National Wildlife Refuge, Washington, USA. March.

Alex Hyde / Raft Spider (Dolomedes fimbriatus) female resting on the surface of a moorland pool among stems of Horsetail (Equisetum sp.). Nordtirol, Austrian Alps, June.

Ernie Janes / Five bar farm gate with Bird foot trefoil (Lotus corniculatus), Bramble (Rubus sp) and Horsetails (Equisetum) Norfolk, England, UK. July.

Nick Upton / Marsh horsetail (Equisteum palustre) with spore cones growing on marshy ground around a pond, Cornwall, UK, April.

Theo Bosboom / Water horsetail (Equisetum fluviatile) close-up, De Bruuk, the Netherlands, May

Sandra Bartocha / Spider (Pachygnathus listeri ) on Water Horsetail (Equisetum fluviatile) with spider possibly (Pachygnathus lesteri) Germany, May

Sandra Bartocha / Water Horsetail (Equisetum fluviatile) close-up with water droplets, Germany, May

Colin Varndell / Great horsetail (Equisetum telmateia) spore cones, Dorset, UK, April

Juan Carlos Munoz / Fossils of the plant (Annularia stellata) from the Carboniferous period, Spain

Alex Hyde / Common horsetail (Equisetum arvense) shedding spores, Peak District National Park, Derbyshire, UK. April.

Nick Upton / Giant Horsetail (Equisetum telmateia) sterile stems growing in damp woodland. Wiltshire, UK, June.

Paul Hobson / Common field Horsetails (Equisetum arvense) in spring showing cones, Yorkshire, UK, May

Paul Hobson / Common field Horsetails (Equisetum arvense) in spring showing cones, Yorkshire, UK, May

Paul Hobson / Common field Horsetails (Equisetum arvense) in spring showing cones, Yorkshire, UK, May

David Kjaer / Southern Marsh orchid (Dactylorhiza praetermissa) flowering in a wild flower meadow with Horsetails (Equisetum sp), England, UK.

Wild Wonders of Europe / Wothe / Close-up of Great horsetail (Equisetum telmateia) stem, Poloniny National Park, Western Carpathians, Eastern Slovakia, Europe, June 2009

Dave Bevan / Black headed gull (Chroicocephalus ridibundus) pair mating at nest site amongst Horsetails, Ceredigion, Wales, UK, May

MYN / Niall Benvie / Male common horsetail {Equisetum arvense}, May, Mre og Romsdal, Norway meetyourneighbours.net project

MYN / Niall Benvie / Three male Common horsetails {Equisetum arvense}, May, Mre og Romsdal, Norway, meetyourneighbours.net project

John Cancalosi / Fossilized Horsetail {Equisetum sp} Italy

David Welling / Horsetails (Equisetum sp) Del Norte Redwoods SP, California

Nature Production / Common Field Horsetail {Equisetum arvense} with roots, flowering stalk and fronds visible, Gumma, Japan

Nature Production / Common Field Horsetail dry spores (microscopic photography) {Equisetum arvense} Japan

Nature Production / Common Field Horsetails {Equisetum arvense} Japan

Niall Benvie / Wood horsetail (Equisetum sylvaticum), the Faroe Islands, Europe. June 2006

Philippe Clement / Close up of stem of Common scouring rush {Equisetum hyemale} Luxembourg

Jane Burton / Domestic Cat {Felis catus} tabby-tortoiseshell kitten among Cocksfoot grass, Horsetails and Rose hips.

Jane Burton / Domestic Cat {Felis catus} tabby-tortoiseshell kitten among Cocksfoot grass, Horsetails and Rose hips.

Jason Smalley / Horsetail {Equisetum} growing round Silver Birch {Betula verrucosa} UK.

Juan Manuel Borrero / Horsetail {Equisetum telmateia} Spain

Juan Manuel Borrero / Horsetail {Equisetum telmateia} Spain

Philippe Clement / Common horsetails {Equisetum arvense} France

Philippe Clement / Wood horsetail {Equisetum sylvaticum} Belgium

Philippe Clement / Common horsetails growing beside water {Equisetum arvense} France

Philippe Clement / Common horsetail sporangiophore {Equisetum arvense} France

Philippe Clement / Wood horsetail {Equisetum sylvaticum} Belgium

Kim Taylor / Meadow horsetail {Equisetum pratense} cone with contracted spores. UK.

Kim Taylor / Meadow horsetail {Equisetum pratense} spores expanded, UK.

Kim Taylor / Meadow horsetail {Equisetum pratense} cone empty of spores. UK.

Kim Taylor / Meadow horsetail {Equisetum pratense} cone with expanded spores. UK.

Kim Taylor / Meadow horsetail {Equisetum pratense} spores contracted, UK.

Jose B. Ruiz / Field horsetail {Equisetum fluviatile} Peak District NP, Derbyshire, UK

Duncan Mcewan / Wood Horestail (Equisetum sylvaticum) Scotland

Nigel Cattlin / Common horsetail (Equisetum arvense) young plants in a sugar beet crop, France