Bernard Castelein / Purple Moor-grass (Molinia caerulea) tussock in grassland, on misty morning. Klein Schietveld, Brasschaat, Belgium. August 2019.

Bernard Castelein / Cloudy sky reflected in water, Purple moor-grass (Molinia caerulea) tussocks inundated with water. Klein Schietveld, Brasschaat, Belgium. March 2019.

Bernard Castelein / Tussocks and trees reflected in water on misty morning. Klein Schietveld, Brasschaat, Belgium. April 2018.

Bernard Castelein / Deergrass (Trichophorum cespitosum) amongst Cross-leaved heath (Erica tetralix), heathland at dawn. Groot Schietveld, Wuustwezel, Belgium. June 2015.

Bernard Castelein / Frozen pond with encroaching trees and tussocks. Peerdsbos, Brasschaat, Belgium. January.

Ingo Arndt / Puma (Puma concolor) camouflaged amongst vegetation tussocks. Torres del Paine, Patagonia, Chile. July.

Angelo Gandolfi / Freshwater pool in rock. Chapada dos Veadeiros National Park, Vale de Lua, Goias, Brazil.

Juan Carlos Munoz / Iberian ibex (Capra pyrenaica) on rocky clifftop, two headbutting one another. Maro-Cerro Gordo Cliffs Natural Area, Granada, Andalusia, Spain. January 2018.

Tony Heald / Antarctic fur seal (Arctocephalus gazella) resting on tussock grass, scratching nose. King penguin (Aptenodytes patagonicus) colony in background. Gold Habour, South Georgia. October 2017.

Tony Heald / Brown skua (Stercorarius antarcticus) resting on tussock grass. Right Whale Bay, South Georgia. September.

Hougaard Malan / Landscape view of NamibRand Nature Reserve sand dunes with tussocks of grass, Namib Desert, Namibia, March 2012. (non-ex)

Roger Powell / Common snipe (Gallinago gallinago) on tussock, Cresswell, Druridge Bay, Northumberland, UK, March.