Cnicus sativus, Illustration of a plant called 16th century Cnicus sativus, Fig. 148, p. 167v, 1561, Valerius Cordus, Konrad Gessner, Benedictus Aretius, Pedanius Dioscorides: In hoc volumine continentur Valerii Cordi Simesusii annotationes in Pedaci