Dreiteiliger Zweizahn, Bidens tripartita / Bidens tripartita is a common and widespread species of plants in the sunflower family, Asteraceae, commonly known as three-lobe beggartick, three-part beggarticks, leafy-bracted beggarticks or trifid bur-marigold, Historisch, historical, digital improved reproduction of an original from the 19th century / digital restaurierte Reproduktion einer Originalvorlage aus dem 19. Jahrhundert, genaues Originaldatum nicht bekannt.