Cleome arborea 1 Gorman Hills, CA 130409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 10 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 11 Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 12 Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 13 Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 14 Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 2 Gorman Hills, CA 130409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 3 Gorman Hills, CA 130409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 4 Gorman Hills, CA 130409 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 7 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 9 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome dodecandra 2 Lund Bot Garden 110617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome dodecandra 3 Lund Bot Garden 110617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome dodecandra 4 Lund Bot Garden 110617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome dodecandra 5 Lund Bot Garden 110617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome dodecandra 6 Bergianska, Stockholm 010829 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome gigantea (Magnus Lidén) - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome hassleriana 1 Lund Bot Garden 120822 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome hassleriana 2 Lund Bot Garden 120822 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome noeana 1 Hajar Mountains, United Arab Emirates 161102 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome noeana 4 Hajar Mountains, United Arab Emirates 161102 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome noeana 5 Hajar Mountains, United Arab Emirates 161102 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome noeana 7 Hajar Mountains, United Arab Emirates 161102 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome noeana 8 Hajar Mountains, United Arab Emirates 161102 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome ornithopodioides 1 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome ornithopodioides 2 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome ornithopodioides 3 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome ornithopodioides 4 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome ornithopodioides 5 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome ornithopodioides 6 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome ornithopodioides 7 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome ornithopodioides 8 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome pallida 10 Dubai, United Arab Emirates 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome pallida 8 Dubai, United Arab Emirates 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome pallida 9 Dubai, United Arab Emirates 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome violacea 5 near El Madroñal Andalusia SP 120320 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome violacea 6 near El Madroñal Andalusia SP 120320 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 5 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 6 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome arborea 8 Rancho Santa Ana Botanic Garden, CA 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome dodecandra 1 Lund Bot Garden 110617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome noeana 2 Hajar Mountains, United Arab Emirates 161102 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome noeana 3 Hajar Mountains, United Arab Emirates 161102 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome noeana 6 Hajar Mountains, United Arab Emirates 161102 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome pallida 1 Dubai, United Arab Emirates 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome pallida 2 Dubai, United Arab Emirates 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome pallida 3 Dubai, United Arab Emirates 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome pallida 4 Dubai, United Arab Emirates 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome pallida 5 Dubai, United Arab Emirates 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome pallida 6 Dubai, United Arab Emirates 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome pallida 7 Dubai, United Arab Emirates 161104 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome violacea 1 near El Madroñal Andalusia SP 120320 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome violacea 2 near El Madroñal Andalusia SP 120320 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome violacea 3 near El Madroñal Andalusia SP 120320 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome violacea 4 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Cleome violacea 7 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).