Andy Sands / Grey willow (Salix cinerea) close up of male flowers, Hertfordshire, England, UK, April, Focus Stacked
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Phil Savoie / Bumblebee mimic hoverfly (Eristalis intricarius) feeding on Grey willow (Salix cinerea) pollen, Monmouthshire, Wales, UK, April.
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Nick Upton / Grey squirrel (Sciurus carolinensis) standing on Willow tree (Salix sp) heavily gnawed by Eurasian beavers (Castor fiber) in a large woodland enclosure at night, Devon Beaver Project, run by Devon Wil...
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Colin Varndell / Grey willow tree (Salix cinerea), male catkins. Dorset, UK, March.
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Colin Varndell / Grey willowtree (Salix cinerea), female catkin and foliage. Dorset, UK, April.
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Will Watson / Rusty willow (Salix cinerea oleifolia) male catkins in tormentose stage with scale buds, Eaton Wood, Herefordshire, England, UK, March. Focus stacked under controlled conditions.
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Will Watson / Grey sallow (Salix cinerea cinerea) leaves showing white hairs, young branches and stipules, Rutland, Leicestershire, England, UK. July. Focus stacked.
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Will Watson / Close up of underside of Rusty sallow (Salix cinerea subspecies oleifolia) leaf showing hairs and veins, magnified x10, River Lugg floodplain, Herefordshire, England, UK. June.
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Will Watson / Rusty sallow (Salix cinerea oleifolia) leaves and stipules, River Lugg floodplain, Herefordshire, England, UK. June.