Thesium 12 Nieuwoudtville, Western Cape, South Africa 011017 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 1a near Zinvahli, Georgia 170423 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 1b near Zinvahli, Georgia 170423 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 1c near Zinvahli, Georgia 170423 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 1d near Zinvahli, Georgia 170423 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 1e near Zinvahli, Georgia 170423 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 1f near Zinvahli, Georgia 170423 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 2a Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 3a road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 3b road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 3c road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 4a Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 4b Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 4c Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 4d Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 6b Kogelberg, Western Cape, South Africa 100917 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 7a road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 7b road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 7d road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 8c Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 9b Middelberg Pass, Western Cape, South Africa 011019 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 11 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 12 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 13 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 2 Botiza, Romania 090613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 6 Stubnerkogel, Austria 080702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 9 Stubnerkogel, Austria 080702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium bergeri 1 Devas near Lake Mikri Prespa, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium bergeri 2 Devas near Lake Mikri Prespa, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium bergeri 3 Devas near Lake Mikri Prespa, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium bergeri 4 Devas near Lake Mikri Prespa, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium bergeri Panaghia, Greece 050525 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium capitatum 1 road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium capitatum 2 road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium capitatum 4 road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf commutatum 3 Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf divaricatum 3 SE of Megali Limni, Lesvos, Greece 100515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf divaricatum 4 SE of Megali Limni, Lesvos, Greece 100515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf lineatum 3 Nieuwoudtville, Western Cape, South Africa 011017 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf pyrenaicum 1 near Galleo, N Spain 180526 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf pyrenaicum 2 near Galleo, N Spain 180526 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf pyrenaicum 3 near Galleo, N Spain 180526 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf pyrenaicum 4 near Galleo, N Spain 180526 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf pyrenaicum 5 near Galleo, N Spain 180526 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf scabrum 1 Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf scabrum 1 Olifants Bos, Cape Peninsula, Western Cape, South Africa 011021 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf scabrum 3 Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf scabrum 6 Olifants Bos, Cape Peninsula, Western Cape, South Africa 011021 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf spicatum 4 near Haarwegskloof N of De Hoop, Western Cape, South Africa 160928 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf squarrosum 2 Garcia's Pass, Riversdale, Western Cape, South Africa 161001 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf squarrosum 3 Garcia's Pass, Riversdale, Western Cape, South Africa 161001 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 3 Hottentots Holland, Western Cape, South Africa 100927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 4 Hottentots Holland, Western Cape, South Africa 100927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 4 Kogelberg, Western Cape, South Africa 100917 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 6 Fernkloof, Hermanus, South Africa 160927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 7 Fernkloof, Hermanus, South Africa 160927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 8 Hottentots Holland, Western Cape, South Africa 100927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 9 Hottentots Holland, Western Cape, South Africa 100927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium chinense 1 between Benzilan and Shangri-la, Yunnan 110711 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium chinense 3 NW of Shangri-la, Yunnan 110708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium chinense 4 NW of Shangri-la, Yunnan 110708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium chinense 5 NW of Shangri-la, Yunnan 110708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium ebracteatum 2 Jalase Nature Reserve, Estonia 100718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium ebracteatum 3 Jalase Nature Reserve, Estonia 100718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium ebracteatum 4 Jalase Nature Reserve, Estonia 100718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium ebracteatum 5 Jalase Nature Reserve, Estonia 100718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium euphorbioides 2 Potberg, De Hoop, South Africa 160930 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium linophyllon 1 W of Zilina, Slovakia 950630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

Thesium linophyllon 5 between Mikroderio and Metaxades, Thracia, Greece 060608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium linophyllon 6 between Mikroderio and Metaxades, Thracia, Greece 060608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium pyrenaicum 1 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium pyrenaicum 5 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium ramosum 3 Mórahalom, Hungary 240509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium spicatum 1 Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium spicatum 2 Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium spicatum 3 Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium spicatum 4 Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium strictum 2 Middelberg Pass, Western Cape, South Africa 011019 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 11 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 13 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 14 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 15 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 18 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 4 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 9 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 10 De Hoop, near the sea, Western Cape, South Africa 011024 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 11 Caledon Swartberg, Western Cape, South Africa 011026 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 1a Schlossalm, Austria 080703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 1b Schlossalm, Austria 080703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 2b Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 5a E of Velddrif, Western Cape, South Africa 100909 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 5b E of Velddrif, Western Cape, South Africa 100909 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 6a Kogelberg, Western Cape, South Africa 100917 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 7c road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 8a Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 8b Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 8d Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 8e Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium 9a Middelberg Pass, Western Cape, South Africa 011019 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 1 Botiza, Romania 090613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 10 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 14 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 15 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 16 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 3 Botiza, Romania 090613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 4 Botiza, Romania 090613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 5 Botiza, Romania 090613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 7 Stubnerkogel, Austria 080702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium alpinum 8 Stubnerkogel, Austria 080702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium capitatum 3 road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium capitatum 5 Caledon Swartberg, Western Cape, South Africa 011026 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf bergeri N of Polygyros, Greece 050526 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf commutatum 1 Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf commutatum 2 Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf commutatum 4 Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf commutatum 5 Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf divaricatum 1 SE of Megali Limni, Lesvos, Greece 100515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf divaricatum 2 SE of Megali Limni, Lesvos, Greece 100515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf lineatum 1 E of Velddrif, Western Cape, South Africa 100909 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf lineatum 2 E of Velddrif, Western Cape, South Africa 100909 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf pyrenaicum 6 near Galleo, N Spain 180526 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf pyrenaicum 7 near Galleo, N Spain 180526 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf pyrenaicum 8 near Galleo, N Spain 180526 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf scabrum 2 Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf scabrum 4 Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf scabrum 5 Klein Blouberg, Cape Point, Western Cape, South Africa 100907 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf spicatum 1 near Haarwegskloof N of De Hoop, Western Cape, South Africa 160928 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf spicatum 2 near Haarwegskloof N of De Hoop, Western Cape, South Africa 160928 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf spicatum 3 near Haarwegskloof N of De Hoop, Western Cape, South Africa 160928 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf spinosum 1 Yzerfontein, Western Cape, South Africa 100908 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf spinosum 2 Yzerfontein, Western Cape, South Africa 100908 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf spinosum 3 Yzerfontein, Western Cape, South Africa 100908 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf spinosum 4 Yzerfontein, Western Cape, South Africa 100908 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf squarrosum 1 Garcia's Pass, Riversdale, Western Cape, South Africa 161001 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 1 Kogelberg, Western Cape, South Africa 100917 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 10 De Hoop, near the sea, Western Cape, South Africa 011024 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 2 Kogelberg, Western Cape, South Africa 100917 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 3 Kogelberg, Western Cape, South Africa 100917 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium cf strictum 5 Hottentots Holland, Western Cape, South Africa 100927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium chinense 2 between Benzilan and Shangri-la, Yunnan 110708 ( (© 2014 Jan Thomas Johansson).

Thesium chinense 2 between Benzilan and Shangri-la, Yunnan 110708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium ebracteatum 1 Rapla, Torasoo, Estonia 100718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium ebracteatum 6 Jalase Nature Reserve, Estonia 100718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium euphorbioides 1 Potberg, De Hoop, South Africa 160930 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium linophyllon 4 between Mikroderio and Metaxades, Thracia, Greece 060608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium linophyllon 7 between Mikroderio and Metaxades, Thracia, Greece 060608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium linophyllon 8 Nagykovácsi, Hungary 240504 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium linophyllon 9 Nagykovácsi, Hungary 240504 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium pyrenaicum 2 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium pyrenaicum 3 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium pyrenaicum 4 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium ramosum 1 Mórahalom, Hungary 240509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium ramosum 2 Mórahalom, Hungary 240509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium ramosum 4 Mórahalom, Hungary 240509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium ramosum 5 Mórahalom, Hungary 240509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium spicatum 5 Haarwegskloof N of De Hoop, Western Cape, South Africa 160929 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium strictum 1 Middelberg Pass, Western Cape, South Africa 011019 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 1 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 10 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 12 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 16 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 17 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 2 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 3 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 5 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 6 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 7 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium subsucculentum 8 Punta de Juan Centella, Tenerife 160409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Thesium viridifolium Cape of Good Hope, Western Cape, South Africa 011021 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).