Stephen Dalton / Common horsetail (Equisetum arvense) shedding spores, UK
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Jan Hamrsky / Narrow-winged damselfly nymph (Ischnura elegans), camouflaged on a stem of horsetail plant, June, Europe, controlled conditions
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Jan Hamrsky / Narrow-winged damselfly nymph (Ischnura elegans), camouflaged on a stem of horsetail plant, June, Europe, controlled conditions
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Ross Hoddinott / Blue-tailed damselfly (Ischnura elegans), male on Common horsetail (Equisetum arvense), Cornwall, UK. June.
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Ross Hoddinott / Large red damselfly (Pyrrhosoma nymphula) resting on common horsetail, Broxwater, Cornwall, UK. April 2017.
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Graham Eaton / Llyn Cwmorthin, with Common horsetail (Equisetum arvense) Tanygrisiau, Wales, February 2014
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Dong Lei / Common mare's tail (Hippuris vulgaris) Basongcuo National Park, Qinghai-Tibet Plateau, Tibet, July.
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Dong Lei / Common mare's tail (Hippuris vulgaris) Basongcuo National Park, Qinghai-Tibet Plateau, Tibet, July.
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Graham Eaton / Common Horsetail (Equisetum arvense) growing on the Llyn Peninsular coast, near Nefyn, North Wales
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Bernard Castelein / Field horsetail (Equisetum arvense) fertile shoots, Brasschaat, Belgium, April.
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Kevin Schafer / Field Horsetail (Equisetum arvense) plants emerging from shallow water, Moses Coulee, Washington
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Alex Hyde / Common horsetail (Equisetum arvense) shedding spores, Peak District National Park, Derbyshire, UK. April.
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Piotr Naskrecki / Field Horsetail (Equisetum arvense) releasing sporophytes, Estabrook Woods, Massachusetts
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Paul Hobson / Common field Horsetails (Equisetum arvense) in spring showing cones, Yorkshire, UK, May
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Paul Hobson / Common field Horsetails (Equisetum arvense) in spring showing cones, Yorkshire, UK, May
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Paul Hobson / Common field Horsetails (Equisetum arvense) in spring showing cones, Yorkshire, UK, May
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MYN / Niall Benvie / Male common horsetail {Equisetum arvense}, May, Mre og Romsdal, Norway meetyourneighbours.net project
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MYN / Niall Benvie / Three male Common horsetails {Equisetum arvense}, May, Mre og Romsdal, Norway, meetyourneighbours.net project
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Nature Production / Common Field Horsetail {Equisetum arvense} with roots, flowering stalk and fronds visible, Gumma, Japan
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Nature Production / Common Field Horsetail dry spores (microscopic photography) {Equisetum arvense} Japan
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Nature Production / Common Field Horsetails {Equisetum arvense} Japan
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Philippe Clement / Close up of stem of Common scouring rush {Equisetum hyemale} Luxembourg
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Philippe Clement / Common horsetails {Equisetum arvense} France
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Philippe Clement / Common horsetails growing beside water {Equisetum arvense} France
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Philippe Clement / Common horsetail sporangiophore {Equisetum arvense} France
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Gerry Ellis / Field Horsetail (Equisetum arvense), Pacific coast, North America
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Gerry Ellis / Field Horsetail (Equisetum arvense) among other various vegetation, Pacific coast, North America
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Kevin Schafer / Field Horsetail (Equisetum arvense) plants emerging from shallow water, Moses Coulee, Washington
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Piotr Naskrecki / Field Horsetail (Equisetum arvense) stems topped with spore-producing strobilus, Estabrook Woods, Massachusetts
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Guy Edwardes / Marsh fritillary butterfly (Euphydryas aurinia) roosting on Horsetail (Equisetum arvense), Rhodope Mountains, Bulgaria. June.
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Nick Upton / Common horsetail (Equisetum arvense) dense stand of sterile stems in around pool margin in damp deciduous woodland, Kenfig National Nature Reserve, Glamorgan, Wales, UK, May.
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Nick Upton / Common horsetail (Equisetum arvense) dense stand of sterile stems in damp deciduous woodland, Kenfig National Nature Reserve, Glamorgan, Wales, UK, May.
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Nick Upton / Common horsetail (Equisetum arvense) dense stand of sterile stems around pool margin in damp deciduous woodland, Kenfig National Nature Reserve, Glamorgan, Wales, UK, May.
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Nigel Cattlin / Common horsetail (Equisetum arvense) spore-bearing and non-photosynthetic fertile shoots of a rhizomatous plant.
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Ross Hoddinott / Large red damselfly (Pyrrhosoma nymphula) resting on common horsetail, Broxwater, Cornwall, UK. April .
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Pal Hermansen / Field horsetail (Equisetum arvensis) Photograph taken with the Kirlian technique, a technique which allows imaging of electrical coronal discharge.
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Nigel Cattlin / Common horsetail (Equisetum arvense) young plants in a sugar beet crop, France
