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Fam.: Asteraceae / Composite Fam.      

Genus:  Lactuca  L.
 

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

Etymology:
   Lactuca:   laktis = milk
   serriola:   salad (genitive, from an old name for chicoree)
 

The Prickly Lettuce Lactuca serriola differs e.g. in following attributes from the similar Great Lettuce Lactuca virosa: It's typically 1.20 meter high and its base rosette usually has withered at flower time, while the Great Lettuce is up to 2 meters high and its base rosette is usually still available at flower time. The leaves of the Prickly Lettuce are often very pinnate and standing almost vertically, while those of the Great Lettuce are rarely pinnate and standing more or less horizontally. The seed of the Prickly Lettuce is more narrow than that of the Great Lettuce, and carries bristles at the tip towards the pappus, which is barely the case at the Great Lettuce.

 

Lactuca serriola / Prickly Lettuce, D Mannheim 18.7.2006
Fig. 1:  Lactuca serriola / Prickly Lettuce
D Mannheim 18.7.2006
Lactuca serriola / Prickly Lettuce, D Mannheim 18.7.2006
Fig. 2:  Lactuca serriola / Prickly Lettuce
D Mannheim 18.7.2006
Lactuca serriola / Prickly Lettuce, D Mannheim 18.7.2006
Fig. 3:  Lactuca serriola / Prickly Lettuce
D Mannheim 18.7.2006
Lactuca serriola / Prickly Lettuce, D Mannheim 20.7.2006
Fig. 4:  Lactuca serriola / Prickly Lettuce
D Mannheim 20.7.2006
Lactuca serriola / Prickly Lettuce, D Schriesheim 7.5.2015
Fig. 5:  Lactuca serriola / Prickly Lettuce
D Schriesheim 7.5.2015
Lactuca serriola / Prickly Lettuce, D Schriesheim 7.5.2015
Fig. 6:  Lactuca serriola / Prickly Lettuce
D Schriesheim 7.5.2015
Lactuca serriola / Prickly Lettuce, D Schriesheim 7.5.2015
Fig. 7:  Lactuca serriola / Prickly Lettuce
D Schriesheim 7.5.2015
Lactuca serriola / Prickly Lettuce, D Schriesheim 13.9.2016
Fig. 8:  Lactuca serriola / Prickly Lettuce
D Schriesheim 13.9.2016
Lactuca serriola / Prickly Lettuce, D Schriesheim 13.9.2016
Fig. 9:  Lactuca serriola / Prickly Lettuce
D Schriesheim 13.9.2016
Lactuca serriola / Prickly Lettuce, D Schriesheim 13.9.2016
Fig. 10:  Lactuca serriola / Prickly Lettuce
D Schriesheim 13.9.2016
Lactuca serriola / Prickly Lettuce, D Schriesheim 13.9.2016
Fig. 11:  Lactuca serriola / Prickly Lettuce
D Schriesheim 13.9.2016
Lactuca serriola / Prickly Lettuce, D Schriesheim 13.9.2016
Fig. 12:  Lactuca serriola / Prickly Lettuce
D Schriesheim 13.9.2016
Lactuca serriola / Prickly Lettuce, D Schriesheim 13.9.2016
Fig. 13:  Lactuca serriola / Prickly Lettuce
D Schriesheim 13.9.2016
Lactuca serriola / Prickly Lettuce, D Lützelbach 17.9.2016
Fig. 14:  Lactuca serriola / Prickly Lettuce
D Lützelbach 17.9.2016
Lactuca serriola / Prickly Lettuce, D Lützelbach 17.9.2016
Fig. 15:  Lactuca serriola / Prickly Lettuce
D Lützelbach 17.9.2016
Lactuca serriola / Prickly Lettuce, D Lützelbach 17.9.2016
Fig. 16:  Lactuca serriola / Prickly Lettuce
D Lützelbach 17.9.2016
Lactuca serriola / Prickly Lettuce, D Östringen-Eichelberg 8.6.2015
Fig. 17:  Lactuca serriola / Prickly Lettuce
D Östringen-Eichelberg 8.6.2015
Lactuca serriola / Prickly Lettuce, E Pyrenees, Erill la Vall in Boi - Valley 16.8.2006
Fig. 18:  Lactuca serriola / Prickly Lettuce
E Pyrenees, Erill la Vall in Boi - Valley 16.8.2006
Lactuca serriola / Prickly Lettuce, E Pyrenees, Erill la Vall in Boi - Valley 16.8.2006
Fig. 19:  Lactuca serriola / Prickly Lettuce
E Pyrenees, Erill la Vall in Boi - Valley 16.8.2006

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