Twisted Grass

I recently bought a plant at a Home & Garden Show which they called "twisted grass". I can not find any information about it. No name was on the container. It is a nice emeral green and the blades are round and twisted. Looks like a grass but round blades about the size of pencil. They said it grew to 3 foot tall and wide. Does anyone know what the botanical name could be or any other information?

 

possibly Juncus effusis 'spiralis'

aka spiral rush if I remember correctly

 

Thank you so much! I found info on it under the name Striped Spiral Rush, aka Lemon twist. Again, thank you for such a quick reply.