An extremely beautiful foreground - midground plant, the bright green color adds intensity to the tank. It needs high lighting and can be difficult to grow, but once successful you won't be disappointed.
A great foreground plant for high-light tanks. Common name of "pearlweed" is apt as once it is established it expands everywhere. Shrimp seem to love hiding in it and keep the dense rowth clean.
Though some say it's a high light plant, I have it in a 50 with 2.5 wpg and can easily keep it as a dense foreground mat. Easy to maintain via 'haircuts', and, as mentioned, shrimp do love it.