Loic Poidevin / Aquatic warbler (Acrocephalus schoenobaenus) Breton Marsh, Vendee, France, May.

Bernard Castelein / Black-capped donacobius (Donacobius atricapilla) perched on two reeds, Municipal protected area of Pampas del Yacuma, Bolivia.

Juan Carlos Munoz / Man cutting Pampas grass (Cortaderia selloana), Miera Valley, Valles Pasiegos, Cantabria, Spain. October, 2017.

Juan Carlos Munoz / Road warning sign in Portmagee Harbour, County Kerry, Republic of Ireland. September 2015.

Chris Mattison / Pampas landscape with tussocks of grass, Patagonia, Chile.

Gabriel Rojo / Greater rhea (Rhea americana) resting on grass, La Pampa , Argentina

Juan Manuel Borrero / Pampas grass (Cortaderia selloana) Delta del Llobregat Natural Park, Barclelona, Spain, September

Jean E. Roche / Aerial view of clumps of Pampas grass (Cortaderia seloana) an invasive species in the Camargue, Southern France, September 2008

Martin Gabriel / Pampas Grass (Cortaderia selloana), Kaltern near Bozen, Northern Italy, September 2008

Colin Monteath / Pampas Grass (Cortaderia sp) , Kaikoura, Canterbury, New Zealand

Colin Monteath / Pampas Grass (Cortaderia sp), Kaikoura, Canterbury, New Zealand

Colin Monteath / Domestic Sheep (Ovis aries) grazing with Silver Pampas Grass (Cortaderia selloana) in the foreground, South Island, New Zealand