Can Anyone Id This Plant?

[xoedusk]

I picked this plant up from Petco today. On the package, the common name is "Giant Papyrus," while the scientific name is "Cyperus alternifolius." It seems these aren't a match looking online.

The best info I can get is that it is a "marsh" plant; the top of the stems need to be above the water line?

Here are some pics.

EDIT: Has anyone successfully kept these in aquaria?

 

[Snick]

Yeah I keep those on the pond outside... according to the garden center, they are "marsh" plants, where only the roots are submerged, but the majority of the stalks and all of the leafs should be above water. They grow pretty big, I have to prune them every couple of months!

 

[Themuleous]

Yeh doesnt look like a true aquatic to me, easy to tell by the fact that its able to stand upright out of the water, most aquatics cant do that as they need the water to support them,

Sam

 

[xoedusk]

Thanks all. Time to take a trip back to Petco.