"Phazon grass" is a are phosphorescent and blue grass-like stalks commonly encountered in areas with high concentrations of Phazon. They resemble Phazon tendrils, with a blue pustule at their base. The grass is unscannable, and simply a part of the rooms they are in. It is found in highly corrupted areas of Bryyo, Elysia and the Pirate Homeworld, particularly the main platform of the Homeworld's Airshaft. This grass does not disappear even when the Leviathans on each respective homeworld are destroyed, suggesting that it will be some time before the damage done by Phazon begins to reverse.