Justicia (Megaskepasma erythrochlamys) 1 E of Icod, Tenerife 160406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia (Megaskepasma erythrochlamys) 2 E of Icod, Tenerife 160406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia (Megaskepasma erythrochlamys) 3 E of Icod, Tenerife 160406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 1a Rancho Santa Ana Botanic Garden, Los Angeles 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 1b Rancho Santa Ana Botanic Garden, Los Angeles 130406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 2b Kirstenbosch Bot Garden, South Africa 161006 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 3a Ranomafana Nat Park, Madagascar 191014 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 3b Ranomafana Nat Park, Madagascar 191014 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 3c Ranomafana Nat Park, Madagascar 191014 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 4b La Guïra Nat Park, Cuba 190319 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia adhatoda 1 Jardín Botanico de Concepción, Malaga, Andalusia Sp 120327 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia adhatoda 2 Jardín Botanico de Concepción, Malaga, Andalusia Sp 120327 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia adhatoda 3 Jardín Botanico de Concepción, Malaga, Andalusia Sp 120327 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia adhatoda 4 Jardín Botanico de Concepción, Malaga, Andalusia Sp 120327 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia aff rhodoptera 1 Mantadia Nat Park, Madagascar 191003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia aff rhodoptera 2 Mantadia Nat Park, Madagascar 191003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia californica 1 Joshua Tree National Park, CA 130416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia californica 2 Joshua Tree National Park, CA 130416 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia callistachya 1 Jardín Botanico, Puerto de La Cruz, Tenerife 090515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia callistachya 2 Jardín Botanico, Puerto de La Cruz, Tenerife 090515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia callistachya 3 Jardín Botanico, Puerto de La Cruz, Tenerife 090515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia callistachya 4 Puerto de la Cruz Bot Garden, Tenerife 160410 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia callistachya 5 Puerto de la Cruz Bot Garden, Tenerife 160410 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia carnea 1 Dept of Botany, Stockholm University 030804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia cf carnea 3 Lund Bot Garden 150422 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia hyssopifolia 1 Barr. del Infierno, Tenerife 160406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia hyssopifolia 4 Teno, Tenerife 160404 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia hyssopifolia 5 Teno, Tenerife 160404 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia hyssopifolia 6 Teno, Tenerife 160404 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia hyssopifolia Teno, Tenerife 970317 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia incana 2 Minwater SW of Oudtshoorn, Western Cape, South Africa 161004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia incana 3 Minwater SW of Oudtshoorn, Western Cape, South Africa 161004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia incana 4 Minwater SW of Oudtshoorn, Western Cape, South Africa 161004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia incana 5 Minwater SW of Oudtshoorn, Western Cape, South Africa 161004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia incana 6 Minwater SW of Oudtshoorn, Western Cape, South Africa 161004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia incana 7 Minwater SW of Oudtshoorn, Western Cape, South Africa 161004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia rizzinii 1 Lund Bot Garden 130109 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia rizzinii 2 Lund Bot Garden 130109 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia scheidweileri 1 Lund Bot Garden 120908 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia scheidweileri 2 Lund Bot Garden 120908 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia scheidweileri 3 Lund Bot Garden 120908 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia spizigera 1 Desert Botanical Garden, Phoenix, Arizona 130426 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia spizigera 2 Desert Botanical Garden, Phoenix, Arizona 130426 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia (Megaskepasma erythrochlamys) 4 E of Icod, Tenerife 160406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 2a Kirstenbosch Bot Garden, South Africa 161006 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 3d Ranomafana Nat Park, Madagascar 191014 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 3e Ranomafana Nat Park, Madagascar 191014 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 4a La Guïra Nat Park, Cuba 190319 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia 4c La Guïra Nat Park, Cuba 190319 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia aff rhodoptera 3 Mantadia Nat Park, Madagascar 191003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia aff rhodoptera 4 Mantadia Nat Park, Madagascar 191003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia aff rhodoptera 5 Mantadia Nat Park, Madagascar 191003 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia brandegeana 1 Lund Bot Garden 150425 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia brandegeana 2 Lund Bot Garden 150425 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia carnea 2 Dept of Botany, Stockholm University 030804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia cf carnea 1 Lund Bot Garden 150422 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia cf carnea 2 Lund Bot Garden 150422 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia cf procumbens Copenhagen Bot Garden 120919 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia hyssopifolia 2 Teno, Tenerife 160404 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia hyssopifolia 3 Teno, Tenerife 160404 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia hyssopifolia 7 Teno, Tenerife 160404 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia hyssopifolia Barranco del Infierno, Tenerife 060415 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia incana 1 Minwater SW of Oudtshoorn, Western Cape, South Africa 161004 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia pauciflora Lund Bot Garden 100321 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia rizzinii 3 Lund Bot Garden 150425 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Justicia rizzinii 4 Lund Bot Garden 150425 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).