Also more commonly know as the much easier to say "Star Grass."
I used to keep this in my old 125 as a barrier between two sets of breeding angels.
Star grass gets it's name from its star leafy pattern. (They come off of the stem in a star pattern but it grows like a grass)
In its NON- Tissue Culture life, it is a FAST Grower. Though even in a Non-TC life it does take a bit to get rolling. (Think of it similar to Jungle Val. Star Grass might melt back, but it comes back STRONGER