Monochoria vaginalis is a species of flowering plant in the water hyacinth family known by several common names, including heartshape false pickerelweed and oval-leafed pondweed.
Culinary use
In northern Luzon in the Philippines, where it is called hahalung, hakhaklung (Ilocano), or saksaklung (Kalinga), the whole young plant is eaten as a vegetable, except for the roots. ==References==