Poa 2 Malá studená dolina, Slovakia 950628 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpigena 1 Adventdalen, Svalbard 790726 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpina 11 N of Gösslunda, Hulterstad, Öland 080614 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpina 6 Kyrketorp, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpina 7 Kyrketorp, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa annua 1 Lund Sk 121019 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa annua 6 Lund Sk 121019 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa annua 7 Lund Sk 121019 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa annua 8 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa annua 9 Lund Sk 121019 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa arctica 4 Tacan, Kangerlussuaq, Greenland 140629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa arctica 7 Tacan, Kangerlussuaq, Greenland 140629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa arctica var caespitans 1 Adventdalen, Svalbard 790726 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa bulbosa 2 Stenshuvud, Södra Mellby, Skåne 810607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa cf kelloggii 1 Santa Margarita River, California 130415 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa cf kelloggii 2 Santa Margarita River, California 130415 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa cf kelloggii 3 Santa Margarita River, California 130415 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 10 Lyckås, Högestad Sk 160617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 11 Lyckås, Högestad Sk 160617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 12 Lyckås, Högestad Sk 160617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 5 Lyckås, Högestad Sk 160617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 6 Lyckås, Högestad Sk 160617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 7 Lyckås, Högestad Sk 160617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 8 Lyckås, Högestad Sk 160617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 9 Lyckås, Högestad Sk 160617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 15 Lund Sk 230703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 16 Lund Sk 230703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 7 Lund Sk 150802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 8 Lund Sk 150802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 9 Lund Sk 150802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa flexuosa Söndre Knutshö, Dovre, Norway 820802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 1 Luopakte, Torne Lappmark 110730 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 2 Luopakte, Torne Lappmark 110730 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa herjedalica 1 Abisko, Torne Lappmark 110725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa herjedalica 2 Abisko, Torne Lappmark 110725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa herjedalica 3 Abisko, Torne Lappmark 110725 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa nemoralis 10 Lund Sk 130618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa nemoralis 3 Lund Sk 130618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa nemoralis 5 Lund Sk 130618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa nemoralis 6 Lund Sk 130618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa nemoralis 7 Lund Sk 130618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa nemoralis 8 Lund Sk 130618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa nemoralis 9 Lund Sk 130618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa palustris 10 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa palustris 8 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa palustris 9 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa pratensis 2 Lund Sk 130530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa pratensis 3 Lund Sk 130530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 1 S of Kvärk, Konga Sk 210630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 11 Gyaberg, Stehag Sk 211023 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 12 Gyaberg, Stehag Sk 211023 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 14 Gyaberg, Stehag Sk 211023 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 2 S of Kvärk, Konga Sk 210630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 3 S of Kvärk, Konga Sk 210630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 6 S of Kvärk, Konga Sk 210630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 7 S of Kvärk, Konga Sk 210630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 8 S of Kvärk, Konga Sk 210630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 9 Gyaberg, Stehag Sk 211023 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa supina 1 Törnskogen, Sollentuna 040812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa trivialis ssp silvicola 2 (root) Dadia, Thracia, Greece 060604 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa trivialis ssp silvicola 3 (root) Dadia, Thracia, Greece 060604 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa trivialis ssp trivialis 3 Lund Sk 130530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa trivialis ssp trivialis 4 Lund Sk 130530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa 1a Nassfeld, Austria 080701 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa 1b Nassfeld, Austria 080701 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpigena 2 Örån, Jämtland 090703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpina 1 Kyrketorp, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpina 10 N of Gösslunda, Hulterstad, Öland 080614 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpina 2 Kyrketorp, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpina 3 Kyrketorp, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpina 4 Kyrketorp, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpina 5 Kyrketorp, Västergötland 140530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpina 8 Ansätten, Jämtland 090704 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa alpina 9 N of Gösslunda, Hulterstad, Öland 080614 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa annua 2 Lund Bot Garden 121011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa annua 3 Lund Sk 121019 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa annua 4 Lund Sk 121019 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa annua 5 Lund Sk 121019 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa arctica 1 Luopakte, Torne Lappmark 110730 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa arctica 2 Luopakte, Torne Lappmark 110730 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa arctica 3 Luopakte, Torne Lappmark 110730 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa arctica 5 Tacan, Kangerlussuaq, Greenland 140629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa arctica 6 Tacan, Kangerlussuaq, Greenland 140629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa arctica var caespitans 2 Adventdalen, Svalbard 790726 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa arctica var vivipara 1 Adventdalen, Svalbard 790726 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa arctica var vivipara 2 Adventdalen, Svalbard 790726 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa bulbosa 1 Stenshuvud, Södra Mellby Sk 090602 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa bulbosa 3 Eketorp, Gräsgård, Öland 150604 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa bulbosa 4 Eketorp, Gräsgård, Öland 150604 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa bulbosa 5 Eketorp, Gräsgård, Öland 150604 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa bulbosa 6 Eketorp, Gräsgård, Öland 150604 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 1 Kulla-Gunnarstorp, Allerum, Skåne 810628 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 13 Lyckås, Högestad Sk 160617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 2 Lilla Frescati, Stockholm 050620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 3 Lyckås, Högestad Sk 160617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa chaixii 4 Lyckås, Högestad Sk 160617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 1 Höllviken Sk 120718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 10 Lund Sk 230703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 11 Lund Sk 230703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 12 Lund Sk 230703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 13 Lund Sk 230703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 14 Lund Sk 230703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 2 Höllviken Sk 120718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 3 Höllviken Sk 120718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 4 Höllviken Sk 120718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 5 Höllviken Sk 120718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa compressa 6 Höllviken Sk 120718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 10 Store Saltsö, Kangerlussuaq, Greenland 140708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 11 Store Saltsö, Kangerlussuaq, Greenland 140708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 12 Store Saltsö, Kangerlussuaq, Greenland 140708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 13 Store Saltsö, Kangerlussuaq, Greenland 140708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 14 Store Saltsö, Kangerlussuaq, Greenland 140708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 16 Sugar Loaf, Kangerlussuaq, Greenland 140707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 17 Sugar Loaf, Kangerlussuaq, Greenland 140707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 18 Sugar Loaf, Kangerlussuaq, Greenland 140707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 3 Luopakte, Torne Lappmark 110730 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 4 Luopakte, Torne Lappmark 110730 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 5 Sugar Loaf, Kangerlussuaq, Greenland 140707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 6 Sugar Loaf, Kangerlussuaq, Greenland 140707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 7 Sugar Loaf, Kangerlussuaq, Greenland 140707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 8 Sugar Loaf, Kangerlussuaq, Greenland 140707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa glauca 9 Sugar Loaf, Kangerlussuaq, Greenland 140707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa infirma SSE of Kalloni, Lesvos, Greece 100511 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa irrigata Sandemar, Södermanland 990616 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa nemoralis 1 Lund Sk 130618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa nemoralis 2 Lund Sk 130618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa nemoralis 4 Lund Sk 130618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa palustris 1 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa palustris 2 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa palustris 3 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa palustris 4 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa palustris 5 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa palustris 6 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa palustris 7 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa pratensis 1 Lund Sk 130530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 10 Gyaberg, Stehag Sk 211023 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 13 Gyaberg, Stehag Sk 211023 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 4 S of Kvärk, Konga Sk 210630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa remota 5 S of Kvärk, Konga Sk 210630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa supina 2 Törnskogen, Sollentuna 040812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa thessala 1 Mt Voras (Kajmakcalan), N Greece 180701 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa thessala 2 Mt Voras (Kajmakcalan), N Greece 180701 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa thessala 3 Mt Voras (Kajmakcalan), N Greece 180701 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa thessala 4 Mt Voras (Kajmakcalan), N Greece 180701 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa trivialis ssp silvicola 1 N of Polygyros, Greece 050526 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa trivialis ssp trivialis 1 Lund Sk 130530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa trivialis ssp trivialis 2 Lund Sk 130530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Poa trivialis ssp trivialis 5 Lund Sk 130530 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).