Colin Monteath / Distichia (Distichia muscoides) cushion plant in dried out swamp area under Carnicero peak, Cordillera Huayhuash, Andes, Peru

Steve Nicholls / Field wood rush (Luzula campestris) flowering in meadowland, Gwent, Wales, UK, April

Nick Upton / Thermal river, fed with boiling water from hot springs, with colourful growths and scummy crusts of blue-green algae, and clumps of Juncus rushes growing at the margins. Polychnitos, Lesbos / Lesvos,...

Nick Upton / Thermal river, fed with boiling water from hot springs, with colourful growths and scummy crusts of blue-green algae, and clumps of Juncus rushes growing at the margins, Polychnitos, Lesbos / Lesvos,...

Nick Upton / 2020VISION / Common teal drake (Anas crecca) swimming in flooded marshland past some Juncus rushes on a sunny winter afternoon, reflected in calm water. Greylake RSPB reserve, Somerset Levels, UK, January

Colin Monteath / Distichia (Distichia muscoides) cushion plant and Plantain (Plantago rigida) on edge of swampy high country, Cordillera Huayhuash, Andes, Peru