Zygophyllum (Fagonia cretica) 1 Magaluf, Mallorca 110422 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia cretica) 2 Anden Verde, Gran Canaria 080410 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia cretica) 3 Anden Verde, Gran Canaria 080410 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia cretica) 4 Magaluf, Mallorca 110422 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia cretica) 5 Magaluf, Mallorca 110422 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia cretica) 6 Magaluf, Mallorca 110422 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia cretica) 7 Miradór de Don Martín, Güímar, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia cretica) 8 Miradór de Don Martín, Güímar, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia cretica) 9 Miradór de Don Martín, Güímar, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia indica) 1 Masafi Wadi, United Arab Emirates 161101 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia indica) 10 Masafi Wadi, United Arab Emirates 161101 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia indica) 2 Masafi Wadi, United Arab Emirates 161101 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia indica) 4 Masafi Wadi, United Arab Emirates 161101 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia indica) 5 Masafi Wadi, United Arab Emirates 161101 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia indica) 6 Masafi Wadi, United Arab Emirates 161101 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia indica) 7 Masafi Wadi, United Arab Emirates 161101 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia indica) 8 Masafi Wadi, United Arab Emirates 161101 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia indica) 9 Masafi Wadi, United Arab Emirates 161101 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 1 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 10 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 11 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 2 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 3 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 5 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 6 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 7 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 9 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

Zygophyllum 1d Caledon Nature Reserve, Western Cape, South Africa 100920 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum 2a Waterfall, Nieuwoudtville, Western Cape, South Africa 100910 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum 2c Waterfall, Nieuwoudtville, Western Cape, South Africa 100910 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

Zygophyllum 5b near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum 5c near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum 5d near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum 5e near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum 6a near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum 6b near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum 6c near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum aff flexuosum 3 De Hoop, Western Cape, South Africa 100921 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum album 1 N Arkasa, Greece 040518 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum album 1 N of Arkasa, Karpathos, Greece 040518 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum album 2 N Arkasa, Greece 040518 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum album 2 N of Arkasa, Karpathos, Greece 040518 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf flexuosum 3 De Hoop, Western Cape, South Africa 100921 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf flexuosum 5 road to Algeria, Western Cape, South Africa 100913 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf foetidum 1 S of Clanwilliam, Western Cape, South Africa 100912 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf foetidum 2 S of Clanwilliam, Western Cape, South Africa 100912 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf fulvum 2 Caledon Nature Reserve, Western Cape, South Africa 100920 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf maculatum 1 Waterfall, Nieuwoudtville, Western Cape, South Africa 100910 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf maculatum 3 Waterfall, Nieuwoudtville, Western Cape, South Africa 100910 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf sessilifolium 4 Fernkloof, Hermanus, Western Cape, South Africa 160927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum foetidum 3 S of Calitzdorp, Western Cape, South Africa 161003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum foetidum 4 S of Calitzdorp, Western Cape, South Africa 161003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum foetidum 5 S of Calitzdorp, Western Cape, South Africa 161003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum foetidum 6 S of Calitzdorp, Western Cape, South Africa 161003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum foetidum 7 S of Clanwilliam, Western Cape, South Africa 100912 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 1 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 10 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 11 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 12 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 2 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 3 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 4 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 5 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 6 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 7 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 8 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fontanesii 9 Punta de Honduras N of Las Eras, Tenerife 160405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fulvum 3 Potberg, De Hoop, South Africa 160930 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fulvum 7 Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum simplex 1 Hanging Gardens, Oman 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum simplex 2 Hanging Gardens, Oman 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum simplex 3 Hanging Gardens, Oman 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum simplex 4 Hanging Gardens, Oman 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum simplex 5 Hanging Gardens, Oman 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Fagonia indica) 3 Masafi Wadi, United Arab Emirates 161101 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 12 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 13 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 4 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum (Tetraena) madagascariensis 8 near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

Zygophyllum 1c Caledon Nature Reserve, Western Cape, South Africa 100920 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum 2b Waterfall, Nieuwoudtville, Western Cape, South Africa 100910 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum 3a SW of Oudtshoorn, Western Cape, South Africa 100926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum 3b SW of Oudtshoorn, Western Cape, South Africa 100926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

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

Zygophyllum 5a near Anakao, Madagascar 191011 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum aff flexuosum 1 De Hoop, Western Cape, South Africa 100921 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum aff flexuosum 2 De Hoop, Western Cape, South Africa 100921 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf flexuosum 1 De Hoop, Western Cape, South Africa 100921 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf flexuosum 2 De Hoop, Western Cape, South Africa 100921 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

Zygophyllum cf fulvum 1 Caledon Nature Reserve, Western Cape, South Africa 100920 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf maculatum 2 Waterfall, Nieuwoudtville, Western Cape, South Africa 100910 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf sessilifolium 1 Fernkloof, Hermanus, Western Cape, South Africa 160927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf sessilifolium 2 Fernkloof, Hermanus, Western Cape, South Africa 160927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum cf sessilifolium 3 Fernkloof, Hermanus, Western Cape, South Africa 160927 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum foetidum 1 SW of Oudtshoorn, Western Cape, South Africa 100926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum foetidum 2 SW of Oudtshoorn, Western Cape, South Africa 100926 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

Zygophyllum fulvum 10 Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fulvum 11 Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

Zygophyllum fulvum 4 S of Calitzdorp, Western Cape, South Africa 161003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fulvum 5 S of Calitzdorp, Western Cape, South Africa 161003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zygophyllum fulvum 6 S of Calitzdorp, Western Cape, South Africa 161003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

Zygophyllum fulvum 9 Tradouws Pass, Western Cape, South Africa 100922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).