Pterocephalus cf dumetorum 2 Jardín Botanico, Soller, Mallorca 110419 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus cf dumetorum 3 Jardín Botanico, Soller, Mallorca 110419 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus cf dumetorum 4 Jardín Botanico, Soller, Mallorca 110419 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus cf dumetorum 5 Jardín Botanico, Soller, Mallorca 110419 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

Pterocephalus dumetorum 1 Mirador de Güimar, Tenerife 060412 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus dumetorum 2 Mirador de Güimar, Tenerife 060412 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus lasiospermus 4 NE of Guia de Isora, Tenerife 090512 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus lasiospermus 5 NE of Guia de Isora, Tenerife 090512 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus lasiospermus 6 NE of Guia de Isora, Tenerife 090512 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus lasiospermus 7 Teide, Tenerife 090516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus lasiospermus 8 Teide, Tenerife 090516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus lasiospermus 9 Teide, Tenerife 090516 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

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

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

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

Pterocephalus perennis 1 Copenhagen Bot Garden 160713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus perennis 2 Copenhagen Bot Garden 160713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus perennis 3 Copenhagen Bot Garden 160713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus perennis 4 Copenhagen Bot Garden 160713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus perennis 5 Copenhagen Bot Garden 160713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus perennis 6 Copenhagen Bot Garden 160713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus perennis 7 Copenhagen Bot Garden 160713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus plumosus 1 Lastos, Karpathos, Greece 040519 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus plumosus 2 Lastos, Karpathos, Greece 040519 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus porphyranthus La Caldera, Pico de los Nieves, La Palma 090512 (Richard Åkesson) - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus virens 1 Jardin Botanico, Gran Canaria 080417 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus virens 2 Jardin Botanico, Gran Canaria 080417 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus virens 3 Lund Bot Garden 220616 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus virens 4 Lund Bot Garden 220616 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus virens 5 Lund Bot Garden 220616 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus virens 6 Lund Bot Garden 220616 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus cf dumetorum 1 Jardín Botanico, Soller, Mallorca 110419 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus cf dumetorum 6 Jardín Botanico, Soller, Mallorca 110419 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

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

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

Pterocephalus lasiospermus 1 NE of Guia de Isora, Tenerife 090512 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus lasiospermus 2 NE of Guia de Isora, Tenerife 090512 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Pterocephalus lasiospermus 3 NE of Guia de Isora, Tenerife 090512 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).