Ptilostemon afer 3 Lund Bot Garden 120720 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon chamaepeuce 3 N of Ormos Apella, Karpathos, Greece 040520 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon chamaepeuce 4 Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon afer 1 Lund Bot Garden 120720 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon afer 10 Copenhagen Bot Garden 140625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon afer 2 Lund Bot Garden 120720 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon afer 4 Alanya, Turkey 090411 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon afer 5 Alanya, Turkey 090411 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon afer 6 Copenhagen Bot Garden 140625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon afer 7 Copenhagen Bot Garden 140625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon afer 8 Copenhagen Bot Garden 140625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon afer 9 Copenhagen Bot Garden 140625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon chamaepeuce 1 N of Ormos Apella, Karpathos, Greece 040520 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon chamaepeuce 2 N of Ormos Apella, Karpathos, Greece 040520 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon diacanthus 1 Copenhagen Bot Garden 080710 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Ptilostemon diacanthus 2 Copenhagen Bot Garden 080710 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).