‘L’Arbre du Ténéré, known in English as the Tree of Ténéré, was a solitary acacia, that was once considered the most isolated tree on Earth — the only one within more than 200 kilometres. It was a landmark on caravan routes through the Ténéré region of the Sahara in northeast Niger — so well known that it and the Arbre Perdu or ‘Lost Tree’ to the north are the only trees to be shown on a map at a scale of 1:4,000,000.’