Hougaard Malan / Lone camelthorn at sunrise. Namib Rand, Namibia. May 2010. Non-ex.

Hougaard Malan / Old camelthorn tree in dry grass field. Namib rand, Namibia. May 2010. Non-ex.

Hougaard Malan / Camelthorn tree below Sossusvlei's massive red dunes. Sossusvlei, Namib Naukluft National Park, Namibia. April 2014. Non-ex.

Chris Mattison / Camelthorn tree (Vachellia erioloba) Dan Viljoen National Park, Namibia

Chris Mattison / Blackthorn acacia (Vachellia erioloba) in flower, Central Namibia.

Richard Du Toit / African Elephant (Loxodonta africana) male and Camelthorn Acacia (Acacia erioloba), Chobe National Park, Botswana

Vincent Grafhorst / Camelthorn Acacia (Acacia erioloba) at night, Kgalagadi Transfrontier Park, Botswana

Vincent Grafhorst / Gemsbok (Oryx gazella) group resting in shade of Camelthorn Acacia (Acacia erioloba), Nossob River, Kgalagadi Transfrontier Park, South Africa

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead trees with dunes in background, Namib-Naukluft National Park, Namibia

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead tree with dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead tree with dunes in background, Namib-Naukluft National Park, Namibia

Stephen Belcher / Camelthorn Acacia (Acacia erioloba) dead tree with dunes in background, Dead Vlei, Namib-Naukluft National Park, Namibia