Pentaphyllon palustre, Illustration of a plant called Pentaphyllon palustre from the 16th century, Fig. 21, p. 96r, 1561, Valerius Cordus, Konrad Gessner, Benedictus Aretius, Pedanius Dioscorides: In hoc volumine continentur Valerii Cordi Simesusii a