Robuta

https://www.revistas.uma.es/index.php/abm/en/article/view/11403 Hydrocharis laevigata (Humb. & Bonpl. ex Willd.) Byng & Christenh. (Hydrocharitaceae), novelty for... hydrocharis laevigata ex https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1672932 European frogbit (Hydrocharis morsus-ranae) - Collection record European frogbit (Hydrocharis morsus-ranae) - Collection record european frogbit hydrocharis ranae collection