SCOTLAND: The Big Picture / Eurasian beaver (Castor fiber) feeding on horsetail, Knapdale Forest, Argyll, Scotland, UK, June.
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SCOTLAND: The Big Picture / Eurasian beaver (Castor fiber) swimming across forest lochan with horsetail (Equisetum sp) in mouth, Knapdale Forest, Argyll, Scotland, UK, June.
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Kirkendall-Spring / Upper Horsetail Falls (Poneytail Falls) Columbia River Gorge National Scenic Area, Oregon, USA. April 2016.
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Kirkendall-Spring / Upper Horsetail Falls (Poneytail Falls), Columbia River Gorge National Scenic Area, Oregon, USA. April 2016.
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Cyril Ruoso / Horsetails (Equisetum laevigatum) underwater, Conboy Lake National Wildlife Refuge, Washington, USA. March.
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Stephen Dalton / Horsetail (Equisetum palustre) young shoots Sussex, UK
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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.
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Graham Eaton / Llyn Cwmorthin, with Common horsetail (Equisetum arvense) Tanygrisiau, Wales, February 2014
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Graham Eaton / Common Horsetail (Equisetum arvense) growing on the Llyn Peninsular coast, near Nefyn, North Wales
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Colin Varndell / Stem of Great horsetail (Equisetum telmateia) in spring. Dorset, UK April.
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Bernard Castelein / Field horsetail (Equisetum arvense) fertile shoots, Brasschaat, Belgium, April.
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Ernie Janes / Five bar farm gate with Bird foot trefoil (Lotus corniculatus), Bramble (Rubus sp) and Horsetails (Equisetum) Norfolk, England, UK. July.