Found this cool looking plant in a stream, not sure what it is?

This was growing in one of the small little streams that run through the property at my work. It was growing fully submerged, and was very low and creeping outward. I plucked some of it because I thought it looked really cool. Put some in my emerged setup and my outdoor container pond. Can anyone tell me what it is? Kind of looks like Stargrass, but not sure that plant is native to NJ?