Elio Della Ferrera / Child sucks on Juncus stem to quench thirst. Dinsho village, Bale Mountains National Park, Ethiopia

Nick Upton / Dense stand of Fen ragwort (Senecio paludosus) flowering among rushes (Juncus sp) in marshland left by shrinking waters of Lake Cerknica, Slovenia, July 2011

Nick Upton / Partially harvested marshland vegetation including Fen ragwort (Senecio paludosus) and rushes (Juncus sp) on margins of shrunken Lake Cerknica, Slovenia, July 2011

Graham Eaton / Split level shot of Llyn Idwal, with Juncus grass, Snowdonia NP, Gwynedd, Wales, UK, May

Graham Eaton / A split level image of Cwm Idwal and Llyn Idwal, a glacial tarn, showing freshwater habitat with Juncus grass and lacustrine algae, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / A split level underwater view of Juncus Grass at lake margin. Llyn Dinas, Snowdonia, Wales, January 2011.

Guy Edwardes / 2020VISION / Common blue butterfly (Polyommatus icarus) resting on soft rush (Juncus effusus). Westhay SWT reserve, Somerset Levels, England, UK, June

Nick Upton / Red-winged / Red-veined Darter Dragonfly (Sympetrum fonscolombii) male clasping stem of Juncus Rush. Polychnitos hot springs Lesbos / Lesvos, Greece, August.

Nick Upton / Red-winged / Red-veined Darter Dragonfly (Sympetrum fonscolombii) male perched on stem of Juncus Rush. Polychnitos hot springs Lesbos / Lesvos, Greece, August.

Nick Upton / Red-winged / Red-veined Darter Dragonfly (Sympetrum fonscolombii) female clasping stem of Juncus Rush. Lesbos / Lesvos, Greece, August.

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

Will Watson / Lundy Pony (Equus caballus) amongst soft rush (Juncus effusus), Lundy Island, Bristol Channel, UK, September 2009

PREMAPHOTOS / Alder fly {Sialis lutaria} female laying eggs on Juncus, UK

Jose B. Ruiz / Sharp pointed rush (Juncus acutus), Alicante, Spain

Elio Della Ferrera / Child sucking reed stem {Juncus sp} to quench thirst. Dinsho village, Bale Mountains NP, Ethiopia