Argemone albiflora 2 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone albiflora 3 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

Argemone albiflora 6 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone albiflora 7 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone glauca 4 National Tropical Botanical Gardens, Kalehua, Kauaii, Hawaii 130711 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone glauca 5 National Tropical Botanical Gardens, Kalehua, Kauaii, Hawaii 130711 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone grandiflora 1 Lund Bot Garden 120613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone grandiflora 2 Lund Bot Garden 120613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone mexicana 3 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

Argemone ochroleuca 2 Maspalomas, Gran Canaria 080406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone squarrosa ssp glabrata 3 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone squarrosa ssp glabrata 5 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone squarrosa ssp glabrata 6 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone squarrosa ssp glabrata 7 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone squarrosa ssp glabrata 8 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone albiflora 1 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone albiflora 5 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone glauca 1 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone glauca 2 Mauna Kea, Big Island, Hawaii 130727 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone glauca 3 National Tropical Botanical Gardens, Kalehua, Kauaii, Hawaii 130711 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone glauca 6 Maui Nui Botanical Garden, Kaluhui, Maui, Hawaii 130718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone glauca 7 Maui Nui Botanical Garden, Kaluhui, Maui, Hawaii 130718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone grandiflora 3 Lund Bot Garden 120613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone mexicana 1 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone mexicana 2 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone ochroleuca 1 Maspalomas, Gran Canaria 080406 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone squarrosa ssp glabrata 1 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone squarrosa ssp glabrata 2 Copenhagen Bot Garden 130821 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Argemone squarrosa ssp glabrata 4 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).