Kaluthin
this unusual strain of grass was developed by the Sith Lord Darth Rivan, when he first came to live on the planet Almas. The kaluthin was developed to help "terraform" the atmopshere of Almas, which at the time was dense with phosphorus, methane, and other poisonous gases. The kaluthin also grew a strong, deep-reaching taproot, which was necessary since all the water on the planet Almas was located underground. Over the centuries, the kaluthin caught hold and spread, helping alter the landscape as well as the atmopshere. Almas' air was soon oxygen-rich, with only traces of phosphorus and methane, but breathing still required a filter or breathmask in order to combat oxygen saturation. Because of the centuries of consuming phosphorus, kaluthin grass actually glows with bioluminescent light, giving the planet a strange aura.