Wild Wonders of Europe / Radisics / Water caltrop / chestnut (Trapa natans) plants growing on water surface, Lake Skadar, Lake Skadar National Park, Montenegro, May 2008
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Wild Wonders of Europe / Radisics / Water caltrop / chestnut (Trapa natans) on water surface, Lake Skadar, Lake Skadar National Park, Montenegro, May 2008
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Tony Heald / RF- Zebra (Equus quagga) foal in profile standing in Devil's Thorn flowers (Tribulus terrestris). Etosha National Park, Namibia, January. (This image may be licensed either as rights managed or royalt...
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Wild Wonders of Europe / Radisics / Water caltrop (Trapa natan) growing on Lake Tisza, Hortobagy National Park, Hungary, July 2009
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Wild Wonders of Europe / Radisics / Close-up of Water caltrop / chestnut (Trapa natans) leaves on water surface, Lake Skadar, Lake Skadar National Park, Montenegro, May 2008
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Hanne & Jens Eriksen / Caltrop (Tribulus omanense) bush in flower, Liwa, Abu Dhabi, United Arab Emirates.
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Hanne & Jens Eriksen / Caltrop (Tribulus omanense). Liwa, Abu Dhabi, United Arab Emirates.
