Theo Allofs / Toetoe (Cortaderia sp) grass, New Zealand

Gerry Ellis / Pampas Grass (Cortaderia sp) islands in old lava flow, Llaima Volcano, Conguillio National Park, Chile

Daniel Gomez / Gaucho prepares to burn grassland. Land management. Ibera NR, Argentina, South America

Daniel Gomez / Roofing grass {Panicum sp} Rincon Santa Maria NR, Corrientes, Argentina, South America

Daniel Gomez / Cardoon / Artichoke thistle {Cynara cardunculus} Argentina brought into South America in grass seed by Spanish settlers. Now a weed in Pampas grasslands displacing native species. Cardo de Castilla

Daniel Gomez / Grasslands around Ibera NR, Argentina, South America

Daniel Gomez / Grassland burning to renew pasture for cattle grazing. Ibera NR, Argentina, South America

Gabriel Rojo / Pampas grey fox (Lycalopex gymnocercus) sitting in Pampas grass (Cortaderia selloana), La Pampa province, Patagonia, Argentina.

Gabriel Rojo / Pampas grey fox (Lycalopex gymnocercus) standing among Pampas grass (Cortaderia selloana) licking its lips, La Pampa province, Patagonia, Argentina.

David Maitland / Autofluorescence image of a cross section through the tip of the growing leaf-whorl of Pampas grass (Cortaderia selloana) exposed to UV light, the chlorophyll fluoresces red and the lignin blue. The &...