Nick Upton / 2020VISION / Queen Hornet (Vespa crabro) feeding on Knotweed flower (Persicaria bistorta "superba") in garden, Wiltshire, England, UK, May . Property released.
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Paul Harcourt Davies / Bistort flowers (Persicaria bistortum), Piano Grande, Sibillini, Umbria, Italy. June 2016
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Paul Harcourt Davies / Bistort (Persicaria bistortum) flower with hoverfly, Piano Grande, Sibillini, Umbria. June.
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Nick Upton / Meadow bistort (Bistorta officinalis / Polygomum bistorta) flowering in profusion on Piva plateau, near Trsa, Montenegro, July.
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Robert Thompson / Bistort (Polygonum bistorta) near Lac du Bornon, Mercantour National Park, Provence, France, June.
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Radomir Jakubowski / European bistort (Bistorta officinalis) flower, Vosges Mountains, France, June.
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Nick Upton / 2020VISION / Early bumblebee (Bombus pratorum) feeding on Knotweed (Persicaria bistorta "superba") flower in garden, Wiltshire, England, UK, May . Property released.
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Nick Upton / 2020VISION / Queen Hornet (Vespa crabro) feeding on Knotweed flower (Persicaria bistorta "superba") in garden, Wiltshire, England, UK, May . Property released.
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Nick Upton / 2020VISION / Early bumblebee (Bombus pratorum) feeding on Knotweed (Persicaria bistorta "superba") flower in garden, Wiltshire, England, UK, May . Property released.
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Andy Sands / Red Clover (Trifolium pratense) and Common Bistort (Persicaria / Polygonum bistorta) growing with Buttercups in hay meadow, Upper Teesdale, Co. Durham, UK, June
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Nick Upton / Early bumble bee (Bombus pratorum) collecting nectar from a Knotweed (Persicaria bistorta 'superba') flower, in a garden, Wiltshire, UK, Summer
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Bruno D'Amicis / Bistort (Persicaria bistorta) and mountain landscape in the Tomanova valley, Western Tatras, Slovakia
