Myriophyllum alterniflorum
Credit: Photo by Pierfranco Arrigoni - Foto visualizzata 331 volte

Myriophyllum aquaticum
Credit: Photo by Marco Banzato - Foto visualizzata 442 volte

Myriophyllum spicatum
Jacob Sturm, Johann Georg Sturm - Deutschlands Flora in Abbildungen (1796). - This image is in the public domain because its copyright has expired. - Foto visualizzata 506 volte

Myriophyllum verticillatum
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 614. - Foto visualizzata 450 volte