Veratrum 1a Göteborg Bot Garden 120628 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum 1b Göteborg Bot Garden 120628 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum 1c Göteborg Bot Garden 120628 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum 1e Göteborg Bot Garden 120628 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum 1f Göteborg Bot Garden 120628 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 17 W of Tana Bru, Finnmark, Norway 220723 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 9 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 10 (cult) Stångby Sk 190802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 11 (cult) Stångby Sk 190802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 12 (cult) Stångby Sk 190802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 13 (cult) Stångby Sk 190802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 3 Copenhagen Bot Garden 150626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 4 Copenhagen Bot Garden 150626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 9 (cult) Stångby Sk 190802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum cf californicum 3 Copenhagen Bot Garden 130611 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum nigrum 3 (cult) Brunnby Sk 060801 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum viride 10 Lund Bot Garden 160605 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum viride 3 Storrs, Connecticut 900602 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum viride 6 Lund Bot Garden 160605 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum viride 7 Lund Bot Garden 160605 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum viride 8 Lund Bot Garden 160605 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum viride 9 Lund Bot Garden 160605 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum 1d Göteborg Bot Garden 120628 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp album 1 Schlossalm, Austria 080703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp album 2 Schlossalm, Austria 080703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp album 3 Schlossalm, Austria 080703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp album 4 Schlossalm, Austria 080703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp album 5 Schlossalm, Austria 080703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp album 6 Schlossalm, Austria 080703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 1 Zdíar, Slovakia 950629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 10 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 11 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 12 above Metsovon, Greece 180627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 13 above Metsovon, Greece 180627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 14 W of Tana Bru, Finnmark, Norway 220723 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 15 W of Tana Bru, Finnmark, Norway 220723 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 16 W of Tana Bru, Finnmark, Norway 220723 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 2 Zdíar, Slovakia 950629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 3 Zdíar, Slovakia 950629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 4 northwestern Romania 090616 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 5 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 6 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 7 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum album ssp lobelianum 8 between Lans en Vercors and Villard-de-Lans FR 150702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 1 Copenhagen Bot Garden 150626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 14 (cult) Stångby Sk 190802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 2 Copenhagen Bot Garden 150626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 5 (cult) Stångby Sk 190802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 6 (cult) Stångby Sk 190802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 7 (cult) Stångby Sk 190802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum californicum 8 (cult) Stångby Sk 190802 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum cf californicum 1 Copenhagen Bot Garden 130611 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum cf californicum 2 Copenhagen Bot Garden 130611 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum nigrum 1 (cult) Brunnby Sk 060801 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum nigrum 2 (cult) Brunnby Sk 060801 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum virginicum 1 Copenhagen Bot Garden 130625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum virginicum 2 Copenhagen Bot Garden 130625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum virginicum 3 Copenhagen Bot Garden 130625 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum viride 1 Storrs, Connecticut 900602 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum viride 2 Storrs, Connecticut 900602 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum viride 4 Lund Bot Garden 160605 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Veratrum viride 5 Lund Bot Garden 160605 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).