Fabrice Cahez / Myrtle (Vinca minor) flowers, Vosges, France, April.
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Doug Wechsler / Milkweed tiger moth (Euchaetes egle) caterpillars on Common milkweed (Asclepias syriaca) Philadelphia, Pennsylvania, USA, July.
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Chris Mattison / Wax flower (Hoya serpens) close up of flowers. Cultivated plant from Himalayas.
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Ernie Janes / Bushman's hat (Hoodia gordonii) Namibia.
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Loic Poidevin / White swallow-wort (Vincetoxicum sp) flowers Gorges du Tarn, France, May
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Ann & Steve Toon / Impala lily (Adenium obesum) flowering, Kruger National Park, South Africa.
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Nick Upton / Greater periwinkle (Vinca major) an invasive species, flowering in one of Gran Canaria's few surviving patches of laurel forest, Los Tilos de Moya, Doramas Rural Park. Gran Canaria UNESCO Biosphere Re...
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Martin Gabriel / Desert rose (Adenium obesum), flowering in February, Dhofar mountains, Sultanate of Oman, February.
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Nick Upton / Brown-flowered wax plant / Cardoncillo gris (Ceropegia fusca), a Canaries endemic, growing among volcanic lava rocks in arid coastal scrubland, Tenerife, May.
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Nick Upton / Brown-flowered wax plant / Cardoncillo gris (Ceropegia fusca), A Canaries endemic, growing among volcanic lava rocks in arid coastal scrubland, Tenerife, May.
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Hanne & Jens Eriksen / Desert rose (Adenium obesum) Oman, September
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Nick Upton / Oleander bushes (Nerium oleander) flowering in Zakros gorge, Sitia Nature Park, Lasithi, Crete, Greece, May 2013.
