[i'm a ninja]

I collected this plant out of a local creek here in north texas. I think it might be guppy grass, but I'm not sure, it has two leaves per node and is light green. The brown stems were like that when I pulled them out of the creek. What do you guys think it is? If you need any more info just ask.

 

[Rudilyn]

Looks like Anacharis (Egeria densa) to me, although mine has 3 leaves at each node (looks like you have 2 leaves per node in the middle pic). You might try searching for the Wiki entry on Najas Guadalupensis eg. Guppy Grass (cannot post it for you, sorry).

 

[mistergreen]

yeah, looks like a Najas guadalupensis
http://www.wvu.edu/~agexten/aquaculture/Weeds/Weed12.htm

 

[Xiphoguy]

najas/guppy grass

Yes definitely Najas/guppy grass. i see quite a bit of it in flowing streams in Northwest Louisiana, not too far from where you are.

A few years I was at an American Livebearer Association convention andat the end of the HUGE auction, I heard bids for "Guppy Grass". i was too far from the front to see it, and the stuff was going for about $1 a bag anyway, so I bid on it. When I won some and went up front to get it, I laughed when i realized that it was the same Najas I got out of ditches back home! However, the stuff i get from ditches is a darker green than the stuff i won. That is the first time that I heard it being called "Guppy grass" It certainly lives up to its name; it is a great plant for livebearer tanks; babies can hide in it and it provides O2 and takes ammonia compounds out.