Michel Roggo / Watermilfoil (Myriophyllum spicatum) with some stems supporting clusters of Zebra mussel (Dreissena polymorpha) Lake Neuchatel, Switzerland. Highly commended in the Plants category of the Wildlife Pho...
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Heather Angel / Chalcid wasp (Gasteruption jaculator) nectaring on Yarrow (Achillea millefolium) cultivar, picking up pollen on legs and head. Long ovipositor used to lays eggs inside solitary bee nests. In garden, S...
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Robert Thompson / Large blue butterfly (Phengaris arion) nectaring on Yarrow (Achillea millefolium). St Caterina di Valfurva Valfurva, Sondrio, Lombardy, Italy.
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Colin Varndell / Yarrow (Achillea millefolium) flower. Dorset, UK, July.
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Michel Roggo / Invasive water plant Whorled water milfoil (Myriophyllum verticillatum), in the Lakes of Plitvicka Jezera / Plitvice Lakes National Park, Croatia. October 2012. Photographed for The Freshwater Project
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Ernie Janes / Achillea millefolium Paprika' in flower in garden. England, UK.
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Ernie Janes / Achillea millefolium Paprika' in flower in garden. England, UK.
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Kim Taylor / Ruby-tailed wasp (Chrysis ignita) feeding on Yarrow (Achillea millefolium) Surrey, England, July.
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Kim Taylor / Ruby-tailed wasp (Chrysis ignita) feeding on Yarrow (Achillea millefolium) Surrey, England, July.
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MYN / Dirk Funhoff / High brown fritillary butterfly (Argynnis adippe) on Yarrow (Achillea millefolium), Lorsch, Hessen, Germany. June. Meetyourneighbours.net project
Nick Upton / Spreading bellflower (Campanula patula) flowering alongside Common yarrow (Achillea millefolium) in alpine grassland, Zelengora mountain range, Sutjeska National Park, Bosnia and Herzegovina, July.