The Raab were a plant species that originated billions of years ago in the Odonto Ceti region of space.
The Raab could grow up to five hundred metres long. They travelled through space and fell on barren asteroids or small moons. The impact scattered their seeds. A handful of the billion seeds would survive and grow, consuming all of the sustenance in the area, eventually growing big enough to fire their shoots off into space, out of the low gravity. (EDA: Frontier Worlds)