Trifolium palustre, Illustration of a plant called Trifolium palustre from the 16th century, Fig. 22, p. 96v, 1561, Valerius Cordus, Konrad Gessner, Benedictus Aretius, Pedanius Dioscorides: In hoc volumine continentur Valerii Cordi Simesusii annotat