Bupleurum 1b Lund Bot Garden 150713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum 2a Devas near Lake Mikri Prespa, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum 2b Devas near Lake Mikri Prespa, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum 2c Devas near Lake Mikri Prespa, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum 2d Devas near Lake Mikri Prespa, N Greece 180629 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 10 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 11 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 12 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 14 Moneval NE of Grenoble FR 150705 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 15 Moneval NE of Grenoble FR 150705 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 17 Mt Falakron, N Greece 180703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 18 Mt Falakron, N Greece 180703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 19 Mt Falakron, N Greece 180703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 2 Roma Sockerbrukspark, Gotland 070804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 20 Mt Falakron, N Greece 180703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 22 Paranesti, N Greece 180702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 23 Paranesti, N Greece 180702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 24 Paranesti, N Greece 180702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 25 Paranesti, N Greece 180702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 26 Paranesti, N Greece 180702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 27 Paranesti, N Greece 180702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 28 Paranesti, N Greece 180702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 3 Roma Sockerbrukspark, Gotland 070804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 8 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 9 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longicaule 1 Baimashan, Yunnan 110710 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longicaule 2 Baimashan, Yunnan 110710 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longicaule 3 Baimashan, Yunnan 110710 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longicaule var giraldii 1 Copenhagen Bot Garden 150626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longicaule var giraldii 2 Copenhagen Bot Garden 150626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longicaule var giraldii 3 Copenhagen Bot Garden 150626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longicaule var giraldii 4 Copenhagen Bot Garden 150626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longicaule var giraldii 6 Copenhagen Bot Garden 150626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longicaule var giraldii 7 Copenhagen Bot Garden 150626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longifolium 3 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longiradiatum 10 Lund Bot Garden 140607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longiradiatum 11 Lund Bot Garden 140607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

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

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

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

Bupleurum petraeum 2 Cote 2000 between Moucherolle and Moucherotte FR 150704 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum petraeum 3 Cote 2000 between Moucherolle and Moucherotte FR 150704 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum petraeum 4 Cote 2000 between Moucherolle and Moucherotte FR 150704 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum petraeum 5 Cote 2000 between Moucherolle and Moucherotte FR 150704 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum ranunculoides 1 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum ranunculoides 2 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum ranunculoides 3 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum ranunculoides 4 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum ranunculoides 5 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum ranunculoides 6 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum ranunculoides 8 Col d'Izoard FR 150709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum ranunculoides 9 Col d'Izoard FR 150709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum rotundifolium 1 Copenhagen Bot Garden 121017 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum rotundifolium 2 Copenhagen Bot Garden 121017 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum rotundifolium 6 Aszófö near Tihany Peninsula, Balaton-velvidék, Hungary 240506 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum rotundifolium 7 Aszófö near Tihany Peninsula, Balaton-velvidék, Hungary 240506 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum salicifolium 1 Las Toscas, La Gomera 060421 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum salicifolium 2 Lund Bot Garden 130515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum salicifolium 3 Lund Bot Garden 130515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum salicifolium 4 Lund Bot Garden 130515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum stellatum 2 Chamrousse FR 150703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum stellatum 3 Chamrousse FR 150703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum subovatum Kontakeika, Samos, Greece 920507 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum tenuissimum 2 Stordal, northern Fanö DK 080809 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum tenuissimum 4 Knudshoved, Nyborg Fjord, Fyn DK 120902 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum tenuissimum 6 Eskilstorps ängar, Eskilstorp Sk 190806 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum tenuissimum 7 Eskilstorps ängar, Eskilstorp Sk 190806 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum trichopodum 1 SE of Megali Limni, Lesbos, Greece 100515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum trichopodum 2 SE of Megali Limni, Lesbos, Greece 100515 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum 1a Lund Bot Garden 150713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum 1c Lund Bot Garden 150713 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum commutatum 1 Dadia, Thracia, Greece 060608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum commutatum 2 Dadia, Thracia, Greece 060608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 1 Roma Sockerbrukspark, Gotland 070804 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 13 Moneval NE of Grenoble FR 150705 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 16 Moneval NE of Grenoble FR 150705 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 21 Paranesti, N Greece 180702 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 4 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 5 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 6 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum falcatum 7 Copenhagen Bot Garden 140719 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum gracile Othos, Karpathos, Greece 040521 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longicaule var giraldii 5 Copenhagen Bot Garden 150626 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longifolium 1 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longifolium 2 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longifolium 4 between Villar d'Arène and Col du Lautaret FR 150707 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum longifolium Tatranská Kotlina, Slovakia 950627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

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

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

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

Bupleurum longiradiatum 9 Lund Bot Garden 140607 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum petraeum 1 Cote 2000 between Moucherolle and Moucherotte FR 150704 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum ranunculoides 7 Col d'Izoard FR 150709 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum rotundifolium 3 Aszófö near Tihany Peninsula, Balaton-velvidék, Hungary 240506 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum rotundifolium 4 Aszófö near Tihany Peninsula, Balaton-velvidék, Hungary 240506 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum rotundifolium 5 Aszófö near Tihany Peninsula, Balaton-velvidék, Hungary 240506 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum stellatum 1 Chamrousse FR 150703 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum tenuissimum 1 Stordal, northern Fanö DK 080809 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum tenuissimum 3 Knudshoved, Nyborg Fjord, Fyn DK 120902 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Bupleurum tenuissimum 5 Eskilstorps ängar, Eskilstorp Sk 190806 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).