Wild Wonders of Europe / Hermansen / Hart's tongue fern (Asplenium scolopendrium) growing between rocks, Burren National Park, County Clare, Republic of Ireland, June 2009
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Wild Wonders of Europe / Möllers / Hart's tongue fern (Asplenium scolopendrium) San Marino, May 2009
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Gary K. Smith / Hart's Tongue Fern (Asplenium scolopendrium) and Maidenhair spleenwort (Asplenium trichomanes) growing on wall. Northumberland, England, UK, September.
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Ashley Cooper / The South West Coast path in a wooded section of the undercliff, between Seaton and Lyme Regis. Jurassic Coast UNESCO World Heritage Site, Dorset, England. UK, June.
Mike Read / Hartstongue fern (Phyllitis scolopendrium) growing in grykes, Southerscales Scar Yorkshire Wildlife Trust Reserve, near Chapel-le-Dale, Yorkshire Dales National Park, Yorkshire, England, UK, July.
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Mike Read / Hartstongue fern (Phyllitis scolopendrium) growing in grykes, Southerscales Scar Yorkshire Wildlife Trust Reserve, near Chapel-le-Dale, Yorkshire Dales National Park, Yorkshire, England, UK, July.
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Ross Hoddinott / RF - Harts tongue fern (Phyllitis scolopendrium) leaf unfurling and creating the shape of a heart, Cornwall, UK, May.
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Alex Hyde / Hart's tongue fern (Asplenium scolopendrium) growing in limestone pavement gryke, Gait Barrows National Nature Reserve, Lancashire, UK. September.
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Alex Hyde / Hart's tongue fern (Asplenium scolopendrium) growing in limestone pavement gryke, Gait Barrows National Nature Reserve, Lancashire, UK. September.
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Alex Hyde / Hart's tongue fern (Asplenium scolopendrium) growing in limestone pavement, Gait Barrows National Nature Reserve, Lancashire, UK. September.
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Alex Hyde / Hart's tongue fern (Asplenium scolopendrium) growing in limestone pavement, Gait Barrows National Nature Reserve, Lancashire, UK. September.
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Alex Hyde / Hart's tongue fern (Asplenium scolopendrium) growing in limestone pavement. Rows of spore-producing sori can be seen on the underside of the fronds. Gait Barrows National Nature Reserve, Lancashire...
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Alex Hyde / Hart's tongue fern (Asplenium scolopendrium) rows of spore-producing sori on underside of the frond. Gait Barrows National Nature Reserve, Lancashire, UK. September.
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Alex Hyde / Hart's tongue fern (Asplenium scolopendrium) rows of spore-producing sori on underside of the frond. Gait Barrows National Nature Reserve, Lancashire, UK. September.
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Philippe Clement / Hart's-tongue fern (Asplenium scolopendrium) La Brenne, France, June.
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Philippe Clement / Hart's-tongue fern (Asplenium scolopendrium) La Brenne, France, June.
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Philippe Clement / Hart's-tongue fern (Asplenium scolopendrium) La Brenne, France, June.
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Philippe Clement / Hart's-tongue fern (Asplenium scolopendrium) La Brenne, France, June.
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Nick Upton / Clump of Hart's-tongue fern (Phyllitis / Asplenium scolopendrium) in woodland understorey after recent rain, Cornwall, UK, May.
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Nick Upton / Clump of Hart's-tongue fern (Phyllitis / Asplenium scolopendrium) in woodland understorey after recent rain, Cornwall, UK, May.
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Nick Upton / Green-winged orchid (Orchis / Anacamptis morio) flowering in a traditional hay meadow meadow, Wiltshire UK, May.
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Chris Mattison / Hart's Tongue Fern (Asplenium scolopendrium) growing on limestone pavement, Gait Barrows, Lancashire, England, UK, July.
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Chris Mattison / Hart's tongue fern (Asplenium scolopendrium), new fronds emerging from crevice in limestone pavement, Lancashire, UK. April.
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Chris Mattison / Hart's tongue fern (Asplenium scolopendrium), new fronds emerging from crevice in limestone pavement, Lancashire, UK. April.
Adrian Davies / Harts tongue fern (Asplenium scolopendrium) growing in gryke in limestone pavement. The Burren, County Clare, Republic of Ireland, June
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Philippe Clement / Hart's Tongue fern (Asplenium scolopendrium) fronds unfurling in spring, Luxembourg, Europe.
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Alex Hyde / Harts tongue fern {Asplenium scolopendrium} and mosses growing in limestone pavement grikes, Yorkshire Dales National Park, UK. March.
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Wild Wonders of Europe / Hermansen / Hart's tongue fern (Asplenium scolopendrium) growing between rocks, Burren National Park, County Clare, Republic of Ireland, June.
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David Kjaer / Hart's tongue fern {Asplenium scolopendrium} growing in woodland, Somerset, UK
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Jason Smalley / Hart's tongue fern {Asplenium scolopendrium} England
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Martin Gabriel / Hart's tongue fern, detail of frond with spores {Asplenium scolopendrium} Germany