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.

Matthew Maran / Dartmoor pony browsing on purple moor grass (Molinia caerulea) East Devon Pebblebed Heaths, Devon, UK, July 2016.

Matthew Maran / Heather (Erica cinerea), Gorse (Ulex europaeus) and purple moor grass (Molina caerulea), East Devon Pebblebed Heathland, Devon, England, UK, July.

Bernard Castelein / English (Quercus robur) in field with Purple moor-grass (Molinea caerulea) with moon, Groot Schietveld, Wuustwezel, Belgium, March.

Theo Bosboom / Close up of leaves (probably of purple moor grass) and bubbles captured in the ice, Deeler Woud Nature Reserve, the Netherlands, January

Duncan Mcewan / Purple moor grass {Molinia caerulea} close up of flowers, Scotland, UK

Chris O'Reilly / Purple moor grass {Molinia caerulea} growing beside a stream in summer, sequence 1/2, Elan valley, Wales

Chris O'Reilly / Purple moor grass {Molinia caerulea} growing beside a stream in winter, sequence 2/2, Elan valley, Wales

Bernard Castelein / Purple moor grass {Molinia caerulea} and Cross leaved heath {Erica tetralix} Kalmthoutse Heide, Belgium

Bernard Castelein / Purple moor grass (Molinia caerulea) and Birch Tree (Betula pendula) in mist, Klein Schietveld, Brasschaat, Belgium