Stipa 1a Les Freaux near La Meije FR 150706 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa 1b Les Freaux near La Meije FR 150706 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa 1c Les Freaux near La Meije FR 150706 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa 1d Les Freaux near La Meije FR 150706 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa 1e Les Freaux near La Meije FR 150706 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa 1f Les Freaux near La Meije FR 150706 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa 2a Rio Clarillo Nat Park, Chile 171104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa 2b Rio Clarillo Nat Park, Chile 171104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa 2c Rio Clarillo Nat Park, Chile 171104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa cernua 3 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa cf pennata 3 Dadia, Thracia, Greece 060603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa gigantea (cult) Brunnby Sk 060801 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa offneri 1 Puntilla de Málaga, Andalucía Spain 220410 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa offneri 2 Puntilla de Málaga, Andalucía Spain 220410 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 1 Nolgården, Näs, Västergötland 870704 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 12 Nolgården, Näs, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 13 Nolgården, Näs, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 2 Nolgården, Näs, Västergötland 870704 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 3 Lund Bot Garden 160712 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulcherrima 6 Máriagyűd, Tenkes, Hungary 240509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulcherrima 7 Máriagyűd, Tenkes, Hungary 240509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulcherrima 8 Máriagyűd, Tenkes, Hungary 240509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulchra 1 Torrey Pines, San Diego, CA 130418 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulchra 2 Torrey Pines, San Diego, CA 130418 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulchra 3 Torrey Pines, San Diego, CA 130418 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulchra 4 Torrey Pines, San Diego, CA 130418 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulchra 5 Torrey Pines, San Diego, CA 130418 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulchra 6 Torrey Pines, San Diego, CA 130418 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa tenuissima 1 (cult) Malmö Sk 160630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa tenuissima 2 (cult) Malmö Sk 160630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa borysthenica 1 NW of Straznice, Czechia 950701 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa borysthenica 2 NW of Straznice, Czechia 950701 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 1 Agia Galini, Crete 110331 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 10 Soulia, Crete 110326 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 11 Cabo de Gata Nature Park, Andalucía Spain 220415 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 12 Cabo de Gata Nature Park, Andalucía Spain 220415 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 13 Cabo de Gata Nature Park, Andalucía Spain 220415 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 14 Cabo de Gata Nature Park, Andalucía Spain 220415 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 15 Cabo de Gata Nature Park, Andalucía Spain 220415 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 16 Cabo de Gata Nature Park, Andalucía Spain 220415 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 2 Agia Galini, Crete 110331 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 3 near Trujillo SP 140508 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 4 near Trujillo SP 140508 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 5 near Trujillo SP 140508 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 6 near Trujillo SP 140508 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 7 near Trujillo SP 140508 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 8 Soulia, Crete 110326 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa capensis 9 Soulia, Crete 110326 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa cernua 1 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa cernua 2 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa cf pennata 1 Dadia, Thracia, Greece 060603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa cf pennata 2 Dadia, Thracia, Greece 060603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa lessingiana 1 Suatu, Romania 090613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa lessingiana 2 Suatu, Romania 090613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa lessingiana 3 Suatu, Romania 090613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa lessingiana 4 Suatu, Romania 090613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa lessingiana 5 Suatu, Romania 090613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 1 Lund Bot Garden 160712 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 10 Nolgården, Näs, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 11 Nolgården, Näs, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 2 Lund Bot Garden 160712 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 3 Nolgården, Näs, Västergötland 870704 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 4 Nolgården, Näs, Västergötland 870704 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 5 Nolgården, Näs, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 6 Nolgården, Näs, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 7 Nolgården, Näs, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 8 Nolgården, Näs, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pennata 9 Nolgården, Näs, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulcherrima 1 Copenhagen Bot Garden 130611 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulcherrima 2 Copenhagen Bot Garden 130611 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulcherrima 3 Copenhagen Bot Garden 130611 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulcherrima 4 Copenhagen Bot Garden 130611 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa pulcherrima 5 Copenhagen Bot Garden 130611 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa robusta 1 Lund Bot Garden 140903 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa robusta 2 Lund Bot Garden 140903 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa robusta 3 Lund Bot Garden 140903 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa robusta 4 Lund Bot Garden 140903 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa robusta 5 Lund Bot Garden 140903 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa robusta 6 Lund Bot Garden 140903 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Stipa tenuissima 3 (cult) Malmö Sk 160630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).