Nick Upton / Red dead nettle (Lamium purpureum) growing on a roadside verge, Bath and Northeast Somerset, UK, April.
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Nick Upton / Low angle view of a dense stand of Yellow archangel (Lamium galeobdolum) flowering in a woodland clearing, GWT Lower Woods reserve, Gloucestershire, UK, May.
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Nick Upton / Dense stand of Yellow archangel (Lamium galeobdolum) flowering in a woodland clearing, GWT Lower Woods reserve, Gloucestershire, UK, May.
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Nick Upton / Dense stand of Yellow archangel (Lamium galeobdolum) flowering in a woodland clearing, GWT Lower Woods reserve, Gloucestershire, UK, May.
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Nick Upton / Low angle view of White dead nettles (Lamium album) growing on a roadside bank, Wiltshire, UK, April.
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Nick Upton / Low angle view of White dead nettles (Lamium album) growing on a roadside bank, Wiltshire, UK, April.
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Brian Lightfoot / Red dead nettle {Lamium purpureum} Scotland, UK.
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Russell Laman / California sea lion (Zalophus californianus) looking down at sea lion carcass on ocean floor as Pacific sea nettles jelllyfish (Chrysaora fuscescens) drift by. Monterey Bay, California, USA, Pacific O...