Rollweed was a species of plant, specifically a weed, that existed within the habitable band of Rystan, a frigid and desolate planet situated in the Outer Rim. This planet was known for its cold environment and lack of life. In 231 BBY, Marchion Ro of the Eye of the Nihil journeyed to Rystan alongside Udi Dis, a Nihil member of the Talortai. During their visit, Ro guided Dis to an area of desolate terrain, where the Talortai observed masses of rollweed blowing through the wasteland.
The novel The High Republic: The Rising Storm, released in 2021 and authored by Cavan Scott, featured rollweed. This novel was a component of Phase I of the Star Wars: The High Republic multimedia initiative.