Here in Maryland, I live close to a couple small streams and over the years I have notice that in the Spring, near these streams/marshy areas out pops some grean leafy plants. Almost like a leafy lettuce of some sort. I never paid much mind to them until this year. I've seen on multiple occasions older Asian ladies picking them....making me think....what is it? Do you think I'm missing out on something that could be eaten? Forgive me if this really seems like a strange question.