Please identify this plant

I have had this plant for 4 or 5 years. It will die off with the first frost of the year, usually in November and come back up in the spring.
I kind of think it is some type of grass, the blades will cut you if you are not careful when handling it, it has never bloomed, it usually grows to about 3 feet tall every year, and it seems to thrive in the hot humid summer weather here in zone 7 Charlotte area of North Carolina.

If anyone knows what plant is please give me it's common name.

Thanks for any help I can get on this plant.

Joe

 

Hi Joe,

I suspect it's some type of sedge. Are the stems triangular? If so, it's a sedge. Here's some info on nutsedge aka nutgrass.
http://en.wikipedia.org/wiki/Cyperus_rotundus

Info on the same family.
http://en.wikipedia.org/wiki/Sedge

Newt

 

Thanks Newt.
I appreciate your help, atleast it gives me a direction to start looking in.
This plant originally came in a florest arrangement, when all the other flowers played out this was all that was left.
The funny thing is this stuff refuses to die and it's a tough plant what ever it is.
Here are a few more close up photos of the plant in question.
Any and all help in the identification of this plant is most appreciated.

Joe

 

Cordyline indivisa perhaps?
http://www.overthegardengate.net/garden/archives/template.asp?linkid=1365

HTH
Chris

 

Joe, since you mention it came in a florist arrangement try searching google with something like:
florist arrangement + grass

I did that and found this site.
http://extension.missouri.edu/xplor/agguides/hort/g06540.htm

Then you could search with the names of the individual grasses. You might even search with terms like:
eulalia grass + sharp edge
and click on the cached version so you can see if the edges are sharp. You can also click on 'Images'.

I'd love to know if you find out what it is.
Newt

 

Cordyline indivisa has broad leaves and is rare. A synonym of the common C. australis is Dracaena indivisa. It seems this has caused it to become confused with C. indivisa in commerce.

Neither has sharp edges that cut when brushed against.