Heracleum mantegazzianum 10 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum mantegazzianum 11 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum mantegazzianum 12 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum mantegazzianum 7 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum mantegazzianum 8 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum mantegazzianum 9 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum moellendorfii Dali, Yunnan 110706 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum nepalense 2 near Lijiang, Yunnan 110707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum nepalense 3 NW of Shangri-la, Yunnan 110708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 1 Lund Bot Garden 140607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 11 Lund Bot Garden 150612 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 12 Lund Bot Garden 150612 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 13 Lund Bot Garden 150612 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 14 Lund Bot Garden 150612 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 15 Lund Bot Garden 150612 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 18 Lund Bot Garden 160603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 19 Lund Bot Garden 160603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 2 Lund Bot Garden 140607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 20 Lund Bot Garden 160603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 23 Lund Bot Garden 160603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 24 Slettmo, Tromsø, Norway 220718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 25 Slettmo, Tromsø, Norway 220718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 3 Lund Bot Garden 140607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 4 Lund Bot Garden 140607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 5 Lund Bot Garden 140607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 6 Lund Bot Garden 140607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 7 Lund Bot Garden 140607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 8 Lund Bot Garden 140607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum x sphondylium ssp sibiricum 3 Slettmo, Tromsø, Norway 220718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum x sphondylium ssp sibiricum 4 Slettmo, Tromsø, Norway 220718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum x sphondylium ssp sibiricum 5 Slettmo, Tromsø, Norway 220718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

Heracleum platytaenium 11 Lund Bot Garden 160605 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum platytaenium 12 Lund Bot Garden 160605 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum platytaenium 13 Lund Bot Garden 160605 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum platytaenium 14 Lund Bot Garden 160605 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum platytaenium 2 Lund Bot Garden 100618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum platytaenium 3 Lund Bot Garden 100618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

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

Heracleum sosnowskyi 10 SE of Dukstas, Lithuania 150804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sosnowskyi 11 SE of Dukstas, Lithuania 150804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sosnowskyi 12 SE of Dukstas, Lithuania 150804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sosnowskyi 2 between Svencionys and Juzina, Lithuania 100713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sosnowskyi 3 SE of Dukstas, Lithuania 150804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sosnowskyi 5 SE of Dukstas, Lithuania 150804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sosnowskyi 6 SE of Dukstas, Lithuania 150804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sosnowskyi 7 SE of Dukstas, Lithuania 150804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sosnowskyi 8 SE of Dukstas, Lithuania 150804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sosnowskyi 9 SE of Dukstas, Lithuania 150804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sibiricum 3 Sockenplan, Stockholm 880713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sibiricum 4 Sockenplan, Stockholm 880713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sibiricum 5 South of Gustav Adolf Sk 150628 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sibiricum 6 South of Gustav Adolf Sk 150628 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sibiricum 7 South of Gustav Adolf Sk 150628 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sphondylium 3 Lund Bot Garden 130627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sphondylium 4 Lund Bot Garden 130627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

Heracleum sphondylium ssp sphondylium 8 Mt Varnous, N Greece 180630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sphondylium 9 Mt Varnous, N Greece 180630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp. sphondylium 7 Mt Varnous, N Greece 180630 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum mantegazzianum 1 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum mantegazzianum 2 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum mantegazzianum 3 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum mantegazzianum 4 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum mantegazzianum 5 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum mantegazzianum 6 Smedstorp Sk 140620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum nepalense 1 NW of Shangri-la, Yunnan 110708 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 10 Lund Bot Garden 150612 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 16 Lund Bot Garden 160603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 17 Lund Bot Garden 160603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 21 Lund Bot Garden 160603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 22 Lund Bot Garden 160603 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum 9 Lund Bot Garden 150612 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum x sphondylium ssp sibiricum 1 Slettmo, Tromsø, Norway 220718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum x sphondylium ssp sibiricum 2 Slettmo, Tromsø, Norway 220718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum x sphondylium ssp sibiricum 6 Slettmo, Tromsø, Norway 220718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum x sphondylium ssp sibiricum 7 Slettmo, Tromsø, Norway 220718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum persicum x sphondylium ssp sibiricum 8 Slettmo, Tromsø, Norway 220718 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum platytaenium 1 Lund Bot Garden 100618 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum platytaenium 4 Bunne, Hörsne, Gotland 140830 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum platytaenium 5 Bunne, Hörsne, Gotland 140830 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

Heracleum sosnowskyi 1 between Svencionys and Juzina, Lithuania 100713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sosnowskyi 4 SE of Dukstas, Lithuania 150804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sibiricum 1 Sockenplan, Stockholm 880713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sibiricum 2 Zdiar, Slovakia 950629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sphondylium 1 Böckstein, Austria 080701 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Heracleum sphondylium ssp sphondylium 2 Lund Bot Garden 130627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).