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Fam.: Polemoniaceae / Jacob's-Ladder Fam.      

Genus:  Polemonium  L.
 

Authors:
   L.:  Carl von Linné (Linnaeus, 1707 - 1777), Swedish naturalist who introduced the binary naming system for plants and animals
 

Etymology:
   Polemonium:   Polemon (65-7 BC), king of Pontos
   caeruleum:   sky blue
 

Polemonium caeruleum / Jacob's Ladder, Greek Valerian, CH Albula-Pass 11.7.2013 (Photo: Ursula Schiebold)
Fig. 1:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
CH Albula-Pass 11.7.2013
(Photo: Ursula Schiebold)
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, CH Albula-Pass 11.7.2013 (Photo: Ursula Schiebold)
Fig. 2:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
CH Albula-Pass 11.7.2013
(Photo: Ursula Schiebold)
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, CH Albula-Pass 11.7.2013 (Photo: Ursula Schiebold)
Fig. 3:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
CH Albula-Pass 11.7.2013
(Photo: Ursula Schiebold)
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, CH Albula-Pass 11.7.2013 (Photo: Ursula Schiebold)
Fig. 4:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
CH Albula-Pass 11.7.2013
(Photo: Ursula Schiebold)
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Sundern 14.6.2019
Fig. 5:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
D Sundern 14.6.2019
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Sundern 14.6.2019
Fig. 6:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
D Sundern 14.6.2019
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Sundern 14.6.2019
Fig. 7:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
D Sundern 14.6.2019
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Sundern 14.6.2019
Fig. 8:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
D Sundern 14.6.2019
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Sundern 14.6.2019
Fig. 9:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
D Sundern 14.6.2019
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Sundern 14.6.2019
Fig. 10:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
D Sundern 14.6.2019
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Sundern 14.6.2019
Fig. 11:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian (color variant)
D Sundern 14.6.2019
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Sundern 14.6.2019
Fig. 12:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian (color variant)
D Sundern 14.6.2019
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Sundern 14.6.2019
Fig. 13:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
D Sundern 14.6.2019
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Beuron 26.7.2015
Fig. 14:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
D Beuron 26.7.2015
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Beuron 26.7.2015
Fig. 15:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian
D Beuron 26.7.2015
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Pappenheim 19.6.2014
Fig. 16:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian (cultiv.)
D Pappenheim 19.6.2014
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Pappenheim 19.6.2014
Fig. 17:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian (cultiv.)
D Pappenheim 19.6.2014
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, F Col de Lautaret Botan. Gar. 28.6.2008
Fig. 18:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian (cultiv.)
F Col de Lautaret Botan. Gar. 28.6.2008
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, F Col de Lautaret Botan. Gar. 28.6.2008
Fig. 19:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian (cultiv.)
F Col de Lautaret Botan. Gar. 28.6.2008
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, F Col de Lautaret Botan. Gar. 28.6.2008
Fig. 20:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian (cultiv.)
F Col de Lautaret Botan. Gar. 28.6.2008
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, F Col de Lautaret Botan. Gar. 28.6.2008
Fig. 21:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian (cultiv.)
F Col de Lautaret Botan. Gar. 28.6.2008
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, F Col de Lautaret Botan. Gar. 28.6.2008
Fig. 22:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian (cultiv.)
F Col de Lautaret Botan. Gar. 28.6.2008
Polemonium caeruleum / Jacob's Ladder, Greek Valerian, D Botan. Gar. Krefeld 13.6.2019
Fig. 23:  Polemonium caeruleum / Jacob's Ladder, Greek Valerian (cultiv.)
D Botan. Gar. Krefeld 13.6.2019

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