i was wondering if that's what it was. it was suggested to me that i use that plant for my jungle/forest goal. that picture has made me decide that i want to try it =)
I think they give you a great "tree" like feel to the tank. I've seen a few people complain that they don't grow up towards the top and only crawl along the substrate. They grow both ways in my tank. I think you just have to be patient then they will start growing upwards after it has settled in your tank.