https://hydrilla.org/identification/vs-elodeaOne wrong call in the field could mean letting an aggressive invader spread while you protect it as native. Hydrilla and Elodea look nearly identical at first glance, but there's one underground feature that settles the identification question for good.
Hydrilla.org
City: San Diego
Address: 982 Hood Avenue
Website: https://hydrilla.org
