Schoenus 1a Santo Tomás, Zapata NP, Cuba 190317 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus 1b Santo Tomás, Zapata NP, Cuba 190317 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus cf nanus 1 Bremer Bay, Western Australia 111002 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus ferrugineus 1 Igelmossen, Öland 010609 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus ferrugineus 4 Skogatorpskärren, Högstena, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus ferrugineus 5 Skogatorpskärren, Högstena, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 2 N of Ormos Apella, Karpathos, Greece 040520 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 7 Garinish Island, West Cork, Ireland 170524 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus apogon 1 Wattle Bay, Auckland NZ 151104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus apogon 2 Wattle Bay, Auckland NZ 151104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus apogon 3 Wattle Bay, Auckland NZ 151104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus cf nanus 2 Bremer Bay, Western Australia 111002 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus cf nanus 3 Bremer Bay, Western Australia 111002 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus ferrugineus 2 Benestad Sk 080601 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus ferrugineus 3 Benestad Sk 080601 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus ferrugineus 6 Skogatorpskärren, Högstena, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus ferrugineus 7 Skogatorpskärren, Högstena, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus ferrugineus 8 Skogatorpskärren, Högstena, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 1 Branden, Anga, Gotland 830626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 10 Peñas Blancas, Sierra Bermeja, Andalucía Spain 220416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 11 Peñas Blancas, Sierra Bermeja, Andalucía Spain 220416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 12 Peñas Blancas, Sierra Bermeja, Andalucía Spain 220416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 3 Tofta, Gotland 980729 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 4 Marais de Chapareillan FR 150705 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 5 Marais de Chapareillan FR 150705 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 6 Marais de Chapareillan FR 150705 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 8 Garinish Island, West Cork, Ireland 170524 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Schoenus nigricans 9 Garinish Island, West Cork, Ireland 170524 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).