Melvin Grey / Black-headed plover (Vanellus tectus) adult male calling. Bogoria National Park, Kenya

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

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

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.

Piotr Naskrecki / Water Horsetail (Equisetum fluviatile) young shoot with water drops

Piotr Naskrecki / Water Horsetail (Equisetum fluviatile) stem and cone, Estabrook Woods, Massachusetts

Piotr Naskrecki / Field Horsetail (Equisetum arvense) releasing sporophytes, Estabrook Woods, Massachusetts