I have dwarf hairgrass i believe in my tank i will research exact name and let you know. I can tell you this it is a very slow grower in my tank, I have had it nearly five months and only see a few new runners from original bunch of blades. I am not expert on growing techniques but it is the slowest of my plants to grow. I was told it would spread like other ground cover and send runners out and to spred faster you are supposed to thin them out along the tank, but i don't have enough grown in to spread out so i leave in the corners they are in for now.