Casuarina equisetifolia 10 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Casuarina equisetifolia 11 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Casuarina equisetifolia 3 (cult) Kohala Mountain, Big Island, Hawaii 130728 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Casuarina equisetifolia 4 (cult) Kohala Mountain, Big Island, Hawaii 130728 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Casuarina equisetifolia 5 (cult) Kohala Mountain, Big Island, Hawaii 130728 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Casuarina equisetifolia 6 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Casuarina equisetifolia 7 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Casuarina equisetifolia 8 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Casuarina equisetifolia 9 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Casuarina equisetifolia 1 Saguaro National Park 6, Tucson, Arizona 130425 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Casuarina equisetifolia 2 Saguaro National Park 6, Tucson, Arizona 130425 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).