Juan Carlos Munoz / Engraving in rock. Ruta dos Namorados, Castelho Melhor, Archaeological Park of the Coa Valley, Western Iberia, Portugal. 2016.
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Heather Angel / Honey bee (Apis mellifera) extending proboscis to nectar on Common rue (Ruta graveolens). Green aphid (Aphidoidea) beneath flower. Surrey, England, UK. July.
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Heather Angel / Parasitic wasp (Gasteruption assectator) nectaring on Common rue (Ruta graveolens). Surrey, England, UK. July.
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Heather Angel / Blowfly (Calliphora sp) nectaring on Common rue (Ruta graveolens). Surrey, England, UK. July.
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Heather Angel / Common rue (Ruta graveolens) flower. Cultivated in herb garden, Surrey, England, UK. Native to Balkan Peninsula.
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Heather Angel / Common rue (Ruta graveolens) flower in visible light, nectar at base of petals. Stamens flip up sequentially with one still folded over the receptacle. Surrey, England, UK. Native to Balkan Peninsula....
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Heather Angel / Common rue (Ruta graveolens) flower in UV light, pollen and nectar at base of petals fluorescing. Insect pollinators are able to see position of rewards on offer. Surrey, England, UK. Native to Balkan...
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Alex Hyde / Wall rue spleenwort (Asplenium ruta-muraria) growing out of a stone wall. Derbyshire, UK. August.
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Alex Hyde / Wall Rue Spleenwort (Asplenium ruta-muraria) growing out of a fissure in a limestone cliff. Lathkill Dale NNR, Peak District National Park, UK. June.
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Florian Möllers / Wall rue spleenwort (Asplenium ruta-muraria) growing on a wall in a cemetery, Berlin, Germany, October
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Florian Möllers / Wall rue spleenwort (Asplenium ruta-muraria) growing on a wall in a cemetery, Berlin, Germany, October
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Juan Carlos Munoz / Traditional white village, Zahara de la Sierra, on the Ruta de los Pueblos Blancos, Parque Natural Sierra de Grazalema, Andalucia, Spain, August 2008
