Impatiens 1c Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

Impatiens balfourii 7 Agios Germanos, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens balfourii 8 Agios Germanos, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens capensis 1 Kongensbro, Gudenå, Jylland 090828 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens capensis 4 Kongensbro, Gudenå, Jylland 060806 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens capensis 5 Kongensbro, Gudenå, Jylland 090828 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens cristata 2 Bergianska 050922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens glandulifera 1 Lund Bot Garden 130909 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens glandulifera 2 Imatra Mills FI 120730 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens niamniamensis 2 Bot Dept, Stockholm Univ 020513 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens noli-tangere 1 Lohja FI 120803 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens noli-tangere 2 Lohja FI 120803 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens noli-tangere 3 Lohja FI 120803 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens noli-tangere 4 Lohja FI 120803 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens noli-tangere 5 Lohja FI 120803 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens noli-tangere 6 Pinnån, Stidsvig, Östra Ljungby Sk 200701 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens noli-tangere 7 Pinnån, Stidsvig, Östra Ljungby Sk 200701 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens parviflora 2 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens parviflora 3 Lund Botanical Garden 130619 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens parviflora 7 Pålsjö, Helsingborg Sk 130813 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens repens 1 Bergianska 020425 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens repens 2 Bot Dept, Stockholm Univ 021203 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens 1a Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens 1b Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens 1d Bergianska, Stockholm 131128 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens auricoma (cult) Stångby, Skåne 050708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens balfourii 1 Lund Bot Garden 120615 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens balfourii 3 Lund Bot Garden 120615 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens balfourii 4 Lund Bot Garden 120613 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens balfourii 5 Agios Germanos, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens balfourii 6 Agios Germanos, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens balsamina 1 Lilla Nyby, Eskilstuna, Södermanland 030914 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens balsamina 2 Bergianska 050922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens balsamina 3 Bergianska 050922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens capensis 2 Kongensbro, Gudenå, Jylland 090828 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens capensis 3 Kongensbro, Gudenå, Jylland 060806 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens cristata 1 Bergianska 050922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens flaccida Bot Dept, Stockholm Univ 041029 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens glandulifera 3 Imatra Mills FI 120730 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens glandulifera 4 Bergianska 050922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens glandulifera 5 Bergianska 050922 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens niamniamensis 1 Bot Dept, Stockholm Univ 041029 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens parviflora 1 Lund Botanical Garden 130619 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens parviflora 4 Lund Sk 120722 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens parviflora 5 Lund Sk 120722 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Impatiens parviflora 6 Lund Sk 120722 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).