Zinnia acerosa 1 Sabino Canyon, Tucson, Arizona 130424 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia acerosa 10 Sabino Canyon, Tucson, Arizona 130424 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia acerosa 11 Sabino Canyon, Tucson, Arizona 130424 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia acerosa 12 Sabino Canyon, Tucson, Arizona 130424 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia acerosa 3 Sabino Canyon, Tucson, Arizona 130424 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia acerosa 4 Sabino Canyon, Tucson, Arizona 130424 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia acerosa 7 Sabino Canyon, Tucson, Arizona 130424 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia acerosa 8 Sabino Canyon, Tucson, Arizona 130424 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia acerosa 9 Sabino Canyon, Tucson, Arizona 130424 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

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

Zinnia haageana 10 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia haageana 11 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

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

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

Zinnia haageana 8 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia haageana 9 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

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

Zinnia peruviana 10 (cult) Malmö Sk 150625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

Zinnia peruviana 5 (cult) Malmö Sk 150625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia peruviana 7 (cult) Malmö Sk 150625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia peruviana 9 (cult) Malmö Sk 150625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

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

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

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

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

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

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

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

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

Zinnia peruviana 6 (cult) Malmö Sk 150625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Zinnia peruviana 8 (cult) Malmö Sk 150625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).